Add 32 bit MINGW support ....

util/qmk_install.sh

@@ -10,7 +10,7 @@ case $(uname) in
 	Linux)
 		exec "${util_dir}/linux_install.sh"
 	;;
-	MSYS_NT*|MINGW64_NT*)
+	MSYS_NT*|MINGW64_NT*|MINGW32_NT*)
 		exec "${util_dir}/msys2_install.sh"
 	;;
 esac