qcacld-3.0: Use WLAN_FEATURE_DP_BUS_BANDWIDTH instead of MSM_PLATFORM

Use WLAN_FEATURE_DP_BUS_BANDWIDTH to instead of MSM_PLATFORM for better
reading.

Change-Id: Iaed4f77b09b80ca8872a69c832491598db021232
CRs-Fixed: 2423299
diff --git a/Kbuild b/Kbuild
index 2011712..7260cb0 100644
--- a/Kbuild
+++ b/Kbuild
@@ -2027,6 +2027,8 @@
 cppflags-y += -DMSM_PLATFORM
 endif
 
+cppflags-$(CONFIG_WLAN_FEATURE_DP_BUS_BANDWIDTH) += -DWLAN_FEATURE_DP_BUS_BANDWIDTH
+
 cppflags-y +=	-DQCA_SUPPORT_TXRX_LOCAL_PEER_ID
 
 cppflags-$(CONFIG_WLAN_TX_FLOW_CONTROL_V2) += -DQCA_LL_TX_FLOW_CONTROL_V2