Restore HW watchdog function in 10A.

tracker/software/make/pp10a.make

@@ -216,7 +216,8 @@ CPPWARN = -Wall -Wextra -Wundef
 # List all user C define here, like -D_DEBUG=1
 UDEFS = -D_GNU_SOURCE -DARM_MATH_CM4 -DSHELL_CMD_TEST_ENABLED=0 \
 		-DSHELL_CMD_EXIT_ENABLED=1 -DUSB_TRACE_LEVEL=5 \
-		-DSHELL_CMD_MEM_ENABLED=0 -DDISABLE_HW_WATCHDOG=1
+		-DSHELL_CMD_MEM_ENABLED=0
+		# -DDISABLE_HW_WATCHDOG=1
 
 # Define ASM defines here
 UADEFS =