Add a path for gcc set as _compiler value outside of the fallback path

Fixes https://github.com/Frogging-Family/linux-tkg/pull/111

linux-tkg-config/prepare

@@ -218,8 +218,9 @@ _tkg_initscript() {
   elif [ "$_compiler" = "llvm" ]; then
       echo "_compiler_name=\"-llvm\"" > ${_path}/compilerset
       echo "llvm_opt=\"LLVM=1\"" >> ${_path}/compilerset
-  else
+  elif [ "$_compiler" = "gcc" ]; then
       echo "_compiler_name=" >> ${_path}/compilerset
+  else
     if [ "$_nofallback" != "true" ] && [ ! -e "${_path}"/compilerset ] && [ "$_compiler" != "llvm" ]; then
       warning "Something is wrong with your compiler selection. Do you want to fallback to GCC (default)?"
       read -rp "`echo $'    > N/y : '`" _fallback;