qcacld-3.0: Increase the rate array for extended rate set.

qcacld-2.0 to qcacld-3.0 propagation

Currently while populating ext rate set, local rate array
has size as 8.But max 12 ext rates can be copied in this
local rate array.If it is greater than 8, then it leads
to crash.
To resolve this issue, increase the local rate array from
8 to 12.

Change-Id: I2097cc4feb7fa669a970de5463130bb4bbf6401c
CRs-Fixed: 903816

core/mac/src/sys/legacy/src/utils/src/parser_api.c

@@ -568,7 +568,7 @@ populate_dot11f_ext_supp_rates(tpAniSirGlobal pMac, uint8_t nChannelNum,
 {
 	tSirRetStatus nSirStatus;
 	uint32_t nRates = 0;
-	uint8_t rates[WNI_CFG_EXTENDED_OPERATIONAL_RATE_SET_LEN];
+	uint8_t rates[SIR_MAC_RATESET_EID_MAX];
 
 	/* Use the ext rates present in session entry whenever nChannelNum is set to OPERATIONAL
 	   else use the ext supported rate set from CFG, which is fixed and does not change dynamically and is used for