Made commands.c compatible with Xilinx compiler.

groundStation/src/backend/commands.c

@@ -169,10 +169,11 @@ struct MessageType MessageTypes[MAX_TYPE_ID] =
 
 int findCommand(char * str)
 {
-	for (int i = 0; i < MAX_TYPE_ID; i++) {
+	int i;
+	for (i = 0; i < MAX_TYPE_ID; i++) {
 		if (strcmp(str, MessageTypes[i].cmdText) == 0) {
 			return i;
 		}
 	}
 	return -1;
-}
\ No newline at end of file
+}