chore: update codeowners to automatically ask for reviews from AMD/NVIDIA (#815)

* chore: update codeowners to automatically ask for reviews from AMD/NVIDIA

* chore: update codeowners to automatically ask for reviews from AMD/NVIDIA pt 2

Author: cquil11

.github/CODEOWNERS

@@ -1 +1,7 @@
-* @InferenceMAX/core
+* @InferenceMAX/core
+
+# AMD master config
+.github/configs/amd-master.yaml @billishyahao @chunfangamd
+
+# NVIDIA master config
+.github/configs/nvidia-master.yaml @ankursingh-nv @yunzhoul-nv @kedarpotdar-nv @csahithi @jgangani