Add Sapphire Nitro+ Radeon RX 6600 XT support (#1707)

Commits squashed by Adam Honse <calcprogrammer1@gmail.com>

Author: Anthony Wang

Controllers/SapphireGPUController/SapphireGPUControllerDetect.cpp

@@ -54,6 +54,7 @@ static const gpu_pci_device device_list[] =
     { AMD_GPU_VEN,  AMD_NAVI21_DEV,         SAPPHIRE_SUB_VEN,           SAPPHIRE_NAVI21_NITRO_PLUS_SUB_DEV2,        SAPPHIRE_NITRO_GLOW_V3, "RX 6800 XT/6900 XT Nitro+"     },
     { AMD_GPU_VEN,  AMD_NAVI21_DEV,         SAPPHIRE_SUB_VEN,           SAPPHIRE_NAVI21_NITRO_PLUS_SUB_DEV3,        SAPPHIRE_NITRO_GLOW_V3, "RX 6800 Nitro+"                },
     { AMD_GPU_VEN,  AMD_NAVI22_DEV,         SAPPHIRE_SUB_VEN,           SAPPHIRE_NAVI22_NITRO_PLUS_SUB_DEV,         SAPPHIRE_NITRO_GLOW_V3, "RX 6700 XT Nitro+"             },
+    { AMD_GPU_VEN,  AMD_NAVI23_DEV,         SAPPHIRE_SUB_VEN,           SAPPHIRE_NAVI23_NITRO_PLUS_SUB_DEV,         SAPPHIRE_NITRO_GLOW_V3, "RX 6600 XT Nitro+"             },
 };
 
 /******************************************************************************************\

pci_ids/pci_ids.h

@@ -25,6 +25,7 @@
 #define AMD_NAVI14_DEV                                  0x7340
 #define AMD_NAVI21_DEV                                  0x73BF
 #define AMD_NAVI22_DEV                                  0x73DF
+#define AMD_NAVI23_DEV                                  0x73FF
 
 /*-----------------------------------------------------*\
 | Intel Device IDs                                      |
@@ -240,6 +241,7 @@
 #define SAPPHIRE_NAVI21_NITRO_PLUS_SUB_DEV2             0xE438
 #define SAPPHIRE_NAVI21_NITRO_PLUS_SUB_DEV3             0xE439
 #define SAPPHIRE_NAVI22_NITRO_PLUS_SUB_DEV              0xE445
+#define SAPPHIRE_NAVI23_NITRO_PLUS_SUB_DEV              0xE448
 
 /*---------------------------------------------------------*\
 | PCI ID Macros                                             |