qcacld-3.0: Enable CONFIG_FEATURE_GPIO_CFG

Enable CONFIG_FEATURE_GPIO_CFG by default, which is exposing vendor
cmd interface for GPIO configuration.

Change-Id: Ib05025b26c03573920d5241150fab925beed425e
CRs-Fixed: 2953325

configs/default_defconfig

@@ -576,6 +576,7 @@ CONFIG_RXDMA_ERR_PKT_DROP := y
 CONFIG_DELIVERY_TO_STACK_STATUS_CHECK := y
 CONFIG_WLAN_TRACE_HIDE_MAC_ADDRESS := n
 CONFIG_DP_MEM_PRE_ALLOC := y
+CONFIG_FEATURE_GPIO_CFG := y
 
 ifeq ($(CONFIG_FEATURE_TSO), y)
 	CONFIG_FEATURE_TSO_STATS := y