qcacmn: Include sgi parameter for ratekps calculation

Currently gi value was not considered for ratekbps calculation
if sgi is enabled, include gi parameter for ratekbps calculation

Change-Id: Idd8b36375493c26f22f2f4f0c7ae922df37e65a1

dp/cmn_dp_api/dp_ratetable.h

@@ -165,7 +165,8 @@ enum DP_CMN_MODULATION_TYPE dp_getmodulation(
 		uint8_t width);
 
 uint32_t
-dp_getrateindex(uint16_t mcs, uint8_t nss, uint8_t preamble, uint8_t bw);
+dp_getrateindex(uint32_t gi, uint16_t mcs, uint8_t nss, uint8_t preamble,
+		uint8_t bw);
 
 int dp_rate_idx_to_kbps(uint8_t rate_idx, uint8_t gintval);