qcacmn: Realloc memory for wmi_service_ext_bitmap

Realloc memory for wmi_service_ext_bitmap when
WMI_SERVICE_AVAILABLE_EVENTID event come, and
the num of wmi_service_ext_bitmap large then
previous num.

Change-Id: I2800fe3274e5516369486ef065ce03ba121bd5b3
CRs-Fixed: 3346739

wmi/inc/wmi_unified_priv.h

@@ -3349,6 +3349,7 @@ struct wmi_soc {
 	/* WMI service bitmap received from target */
 	uint32_t *wmi_service_bitmap;
 	uint32_t *wmi_ext_service_bitmap;
+	uint32_t wmi_ext2_service_bitmap_len;
 	uint32_t *wmi_ext2_service_bitmap;
 	uint32_t services[wmi_services_max];
 	uint16_t wmi_max_cmds;