ifdtool: Enable warnings as errors, and fix any issues

Change-Id: Id462a10c2affac54ec48a1cc2a5b2ca66112848e
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/11613
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

util/ifdtool/ifdtool.c

@@ -42,7 +42,7 @@ static const struct region_name region_names[MAX_REGIONS] = {
 	{ "Reserved", "res1" },
 	{ "Reserved", "res2" },
 	{ "Reserved", "res3" },
-	{ "EC" "ec" },
+	{ "EC", "ec" },
 };
 
 static fdbar_t *find_fd(char *image, int size)
@@ -729,6 +729,9 @@ static void set_em100_mode(char *filename, char *image, int size)
 	case IFD_VERSION_2:
 		freq = SPI_FREQUENCY_17MHZ;
 		break;
+	default:
+		freq = SPI_FREQUENCY_17MHZ;
+		break;
 	}
 
 	fcba->flcomp &= ~(1 << 30);