qcacld-3.0: Export if DRV is supported through platform capability

Add PLD_HAS_DRV_SUPPORT to platform capability to indicate if PCIe
DRV is supported or not.

Change-Id: I25dcba18b795988c4cdecd3f0c355de6786e0f3f
CRs-fixed: 2722430

core/pld/inc/pld_common.h

@@ -119,10 +119,12 @@ struct pld_fw_files {
  * enum pld_platform_cap_flag - platform capability flag
  * @PLD_HAS_EXTERNAL_SWREG: has external regulator
  * @PLD_HAS_UART_ACCESS: has UART access
+ * @PLD_HAS_DRV_SUPPORT: has PCIe DRV support
  */
 enum pld_platform_cap_flag {
 	PLD_HAS_EXTERNAL_SWREG = 0x01,
 	PLD_HAS_UART_ACCESS = 0x02,
+	PLD_HAS_DRV_SUPPORT = 0x04,
 };
 
 /**