Add support for Macronix MX23L3254 mask ROM

Corresponding to flashrom svn r1784.

Signed-off-by: Michael Coppola <michael.n.coppola@gmail.com>
Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
diff --git a/flash.h b/flash.h
index bfb0a49..59f7cd4 100644
--- a/flash.h
+++ b/flash.h
@@ -208,6 +208,7 @@
 #define TEST_BAD_READ	(1 << 5)
 #define TEST_BAD_ERASE	(1 << 6)
 #define TEST_BAD_WRITE	(1 << 7)
+#define TEST_BAD_EW	(TEST_BAD_ERASE | TEST_BAD_WRITE)
 #define TEST_BAD_REW	(TEST_BAD_READ | TEST_BAD_ERASE | TEST_BAD_WRITE)
 #define TEST_BAD_PREW	(TEST_BAD_PROBE | TEST_BAD_READ | TEST_BAD_ERASE | TEST_BAD_WRITE)
 #define TEST_BAD_MASK	0xf0