qcacmn: Increase number of PCIE groups

The current platforms support 4 pci slots, so increasing
WLAN_CFG_MAX_PCIE_GROUPS to 4 to have unique irq name

Change-Id: Ifca25ee075611c75a5fa5e56782835ad89d26f91

hif/src/pcie/if_pci.c

@@ -72,7 +72,7 @@
  * use TargetCPU warm reset * instead of SOC_GLOBAL_RESET
  */
 #define CPU_WARM_RESET_WAR
-#define WLAN_CFG_MAX_PCIE_GROUPS 2
+#define WLAN_CFG_MAX_PCIE_GROUPS 4
 #ifdef QCA_WIFI_QCN9224
 #define WLAN_CFG_MAX_CE_COUNT 16
 #else