mv_feroceon: bump the max timer counter.

This allows the timer APIs to be used to configure/enable the watchdog timer.

Change-Id: I9091c618265e8cc184affc8f735bbdd30585f754
diff --git a/board/mv_feroceon/mv_kw2/kw2_family/ctrlEnv/mvCtrlEnvSpec.h b/board/mv_feroceon/mv_kw2/kw2_family/ctrlEnv/mvCtrlEnvSpec.h
index eed78d3..84a6f7c 100644
--- a/board/mv_feroceon/mv_kw2/kw2_family/ctrlEnv/mvCtrlEnvSpec.h
+++ b/board/mv_feroceon/mv_kw2/kw2_family/ctrlEnv/mvCtrlEnvSpec.h
@@ -135,7 +135,7 @@
 
 #define MV_GPP_MAX_PINS			96
 #define MV_GPP_MAX_GROUP    		3
-#define MV_CNTMR_MAX_COUNTER 		2
+#define MV_CNTMR_MAX_COUNTER 		3
 #define MV_UART_MAX_CHAN		2
 
 #define MV_XOR_6510_6530_MAX_UNIT	0