Add Steam Deck OLED GPU

[Telaneo]

The original Steam Deck's GPU has already been added, listed as '0x1002:0x163f:1:3:Van Gogh', but the OLED version, codename Sephiroth, hasn't.

Here's the output from lspci -nn on my own Steam Deck OLED:

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00:00.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] VanGogh Root Complex [1022:1645]
00:01.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host Bridge [1022:1632]
00:01.2 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] VanGogh PCIe GPP Bridge [1022:1647]
00:01.3 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] VanGogh PCIe GPP Bridge [1022:1647]
00:01.4 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] VanGogh PCIe GPP Bridge [1022:1647]
00:08.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host Bridge [1022:1632]
00:08.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] VanGogh Internal PCIe GPP Bridge to Bus [1022:1648]
00:08.2 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] VanGogh Internal PCIe GPP Bridge to Bus [1022:1648]
00:08.3 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] VanGogh Internal PCIe GPP Bridge to Bus [1022:1648]
00:14.0 SMBus [0c05]: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller [1022:790b] (rev 71)
00:14.3 ISA bridge [0601]: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge [1022:790e] (rev 51)
00:18.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] VanGogh Data Fabric; Function 0 [1022:1660]
00:18.1 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] VanGogh Data Fabric; Function 1 [1022:1661]
00:18.2 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] VanGogh Data Fabric; Function 2 [1022:1662]
00:18.3 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] VanGogh Data Fabric; Function 3 [1022:1663]
00:18.4 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] VanGogh Data Fabric; Function 4 [1022:1664]
00:18.5 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] VanGogh Data Fabric; Function 5 [1022:1665]
00:18.6 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] VanGogh Data Fabric; Function 6 [1022:1666]
00:18.7 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] VanGogh Data Fabric; Function 7 [1022:1667]
01:00.0 Non-Volatile memory controller [0108]: Phison Electronics Corporation PS5021-E21 PCIe4 NVMe Controller (DRAM-less) [1987:5021] (rev 01)
02:00.0 SD Host controller [0805]: O2 Micro, Inc. SD/MMC Card Reader Controller [1217:8621] (rev 01)
03:00.0 Network controller [0280]: Qualcomm Technologies, Inc QCNFA765 Wireless Network Adapter [17cb:1103] (rev 01)
04:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Sephiroth [AMD Custom GPU 0405] [1002:1435] (rev ae)
04:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Rembrandt Radeon High Definition Audio Controller [1002:1640]
04:00.2 Encryption controller [1080]: Advanced Micro Devices, Inc. [AMD] Family 19h PSP/CCP [1022:1649]
04:00.3 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] VanGogh USB2 [1022:162c]
04:00.4 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] VanGogh USB1 [1022:163b]
04:00.5 Multimedia controller [0480]: Advanced Micro Devices, Inc. [AMD] ACP/ACP3X/ACP6x Audio Coprocessor [1022:15e2] (rev 50)
05:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Zeppelin/Raven/Raven2 PCIe Dummy Function [1022:145a] (rev 61)
06:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Zeppelin/Raven/Raven2 PCIe Dummy Function [1022:145a]

I believe this to be the relevant part:

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04:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Sephiroth [AMD Custom GPU 0405] [1002:1435] (rev ae)

If you need me to run anything else on the Steam Deck OLED to be able to add its GPU to gpus.txt, then please say so.

[muziqaz]

I doubt I will enable Steamdeck GPUs, since FAH can easily damage them as they are not created for super high compute workloads. Please use your very expensive handheld gaming devices for what they were created