Exit with an error code if validate fails

tools/tcg_rim_tool/src/main/java/hirs/swid/Main.java

@@ -57,6 +57,7 @@ public class Main {
                         System.out.println("Successfully verified " + verifyFile);
                     } else {
                         System.out.println("Failed to verify " + verifyFile);
+                        System.exit(1);
                     }
                 } else {
                     System.out.println("Need a RIM file to validate!");