Adds gcc-toolset-12 packages to prepopulate.json

- gcc-toolset-12
  - gcc-toolset-12-annobin
  - gcc-toolset-12-binutils
  - gcc-toolset-12-dwz
  - gcc-toolset-12-gcc
  - gcc-toolset-12-gdb

prepopulate.json

@@ -1307,7 +1307,61 @@
         "libtsan.x86_64", 
         "libubsan.i686", 
         "libubsan.x86_64"
-      ], 
+      ],
+      "gcc-toolset-12": [
+        "gcc-toolset-12.x86_64",
+        "gcc-toolset-12-build.x86_64",
+        "gcc-toolset-12-runtime.x86_64"
+      ],
+      "gcc-toolset-12-annobin": [
+        "gcc-toolset-12-annobin-annocheck.x86_64",
+        "gcc-toolset-12-annobin-docs.noarch",
+        "gcc-toolset-12-annobin-plugin-gcc.x86_64"
+      ],
+      "gcc-toolset-12-binutils": [
+        "gcc-toolset-12-binutils.x86_64",
+        "gcc-toolset-12-binutils-devel.i686",
+        "gcc-toolset-12-binutils-devel.x86_64",
+        "gcc-toolset-12-binutils-gold.x86_64"
+      ],
+      "gcc-toolset-12-dwz": [
+        "gcc-toolset-12-dwz.x86_64"
+      ],
+      "gcc-toolset-12-gcc": [
+        "gcc-toolset-12-gcc.x86_64",
+        "gcc-toolset-12-gcc-c++.x86_64",
+        "gcc-toolset-12-gcc-gfortran.x86_64",
+        "gcc-toolset-12-gcc-plugin-annobin.x86_64",
+        "gcc-toolset-12-gcc-plugin-devel.i686",
+        "gcc-toolset-12-gcc-plugin-devel.x86_64",
+        "gcc-toolset-12-libasan-devel.i686",
+        "gcc-toolset-12-libasan-devel.x86_64",
+        "gcc-toolset-12-libatomic-devel.i686",
+        "gcc-toolset-12-libatomic-devel.x86_64",
+        "gcc-toolset-12-libgccjit.i686",
+        "gcc-toolset-12-libgccjit.x86_64",
+        "gcc-toolset-12-libgccjit-devel.i686",
+        "gcc-toolset-12-libgccjit-devel.x86_64",
+        "gcc-toolset-12-libgccjit-docs.x86_64",
+        "gcc-toolset-12-libitm-devel.i686",
+        "gcc-toolset-12-libitm-devel.x86_64",
+        "gcc-toolset-12-liblsan-devel.x86_64",
+        "gcc-toolset-12-libquadmath-devel.i686",
+        "gcc-toolset-12-libquadmath-devel.x86_64",
+        "gcc-toolset-12-libstdc++-devel.i686",
+        "gcc-toolset-12-libstdc++-devel.x86_64",
+        "gcc-toolset-12-libstdc++-docs.x86_64",
+        "gcc-toolset-12-libtsan-devel.x86_64",
+        "gcc-toolset-12-libubsan-devel.i686",
+        "gcc-toolset-12-libubsan-devel.x86_64",
+        "gcc-toolset-12-offload-nvptx.x86_64",
+        "libasan8.i686",
+        "libasan8.x86_64",
+        "libtsan2.x86_64"
+      ],
+      "gcc-toolset-12-gdb": [
+        "gcc-toolset-12-gdb.x86_64"
+      ],
       "gcr": [
         "gcr-base.i686", 
         "gcr-base.x86_64",