Fix mislabeled GCC 3.1.1 toolchain entry

Author: cdervis

toolchain_gcc.yaml

@@ -14,7 +14,7 @@ infos:
     released: May, 2003
     refs:
       - "https://gcc.gnu.org/gcc-3.2/"
-  - name: GCC 3.3.1
+  - name: GCC 3.1.1
     released: July, 2002
     refs:
       - "https://gcc.gnu.org/gcc-3.1/"