sys_patch_detect.py: Avoid conflicting AMD patch installation

CHANGELOG.md

@@ -9,6 +9,8 @@
 - Resolve `/Library/Extensions` not being cleaned on KDK-less root patches
 - Add AMD Vega Graphics support for pre-AVX2.0 systems on Ventura
   - ex. AMD Vega 56 and 64, AMD Radeon VII
+  - Note: As with Polaris, Vega GPUs cannot be mixed with AMD GCN 1-3 patches
+    - Patcher will prioritize the AMD GCN 1-3 (assumption that GCN is primary GPU, ex. MacPro6,1)
 - Implement proper `APPLE SSD TS0128F/256F` detection
   - Allows all Macs to utilize patch if required
   - Avoids usage of patch when host lacks affected drive (ex. MacBookAir6,x with upgraded SSD)

resources/sys_patch/sys_patch_detect.py

@@ -206,12 +206,13 @@ class detect_root_patch:
             self.sandy_gpu = False
             self.legacy_keyboard_backlight = False
 
-        if self.legacy_polaris is True and self.legacy_gcn is True:
+        if self.legacy_gcn is True:
             # We can only support one or the other due to the nature of relying
-            # on portions of the native AMD stack for Polaris
+            # on portions of the native AMD stack for Polaris and Vega
             # Thus we'll prioritize legacy GCN due to being the internal card
             # ex. MacPro6,1 and MacBookPro11,5 with eGPUs
             self.legacy_polaris = False
+            self.legacy_vega = False
 
         if self.constants.detected_os <= os_data.os_data.monterey:
             # Always assume Root KC requirement on Monterey and older