blackfin: kgdb: skip hardware watchpoint test

blackfin doesn't support hardware watchpoint except for over JTAG
emulator.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
diff --git a/arch/blackfin/include/asm/kgdb.h b/arch/blackfin/include/asm/kgdb.h
index aaf8845..2703dde 100644
--- a/arch/blackfin/include/asm/kgdb.h
+++ b/arch/blackfin/include/asm/kgdb.h
@@ -109,6 +109,7 @@
 # define CACHE_FLUSH_IS_SAFE	1
 #endif
 #define GDB_ADJUSTS_BREAK_OFFSET
+#define GDB_SKIP_HW_WATCH_TEST
 #define HW_INST_WATCHPOINT_NUM	6
 #define HW_WATCHPOINT_NUM	8
 #define TYPE_INST_WATCHPOINT	0