enable watchdog driver for rb532 by default

SVN-Revision: 9897

target/linux/rb532/config-2.6.22

@@ -142,6 +142,7 @@ CONFIG_PAGE_SIZE_4KB=y
 # CONFIG_PNPACPI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
+CONFIG_RC32434_WDT=y
 # CONFIG_RTC is not set
 CONFIG_RWSEM_GENERIC_SPINLOCK=y
 CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y