wlan: Add support for updating multicast transmit rate.

Add support for updating multicast rate.
CRs-fixed: 549461

Change-Id: If7342207d6e828f078268d8b51f57fbcdcd94a7c
diff --git a/CORE/MAC/src/include/sirParams.h b/CORE/MAC/src/include/sirParams.h
index 23ca294..f533fd7 100644
--- a/CORE/MAC/src/include/sirParams.h
+++ b/CORE/MAC/src/include/sirParams.h
@@ -611,6 +611,7 @@
 #define SIR_HAL_TRIGGER_BATCH_SCAN_RESULT_IND (SIR_HAL_ITC_MSG_TYPES_BEGIN + 213)
 #endif
 
+#define SIR_HAL_RATE_UPDATE_IND            (SIR_HAL_ITC_MSG_TYPES_BEGIN + 217)
 
 #define SIR_HAL_MSG_TYPES_END              (SIR_HAL_ITC_MSG_TYPES_BEGIN + 0xFF)
 // CFG message types