wlan: Driver command to set uapsd enable/disable dynamically.

Provide support to set/reset uapsd ps bit in TSPEC element
dynamically.

Change-Id: Ic4d1ba5137a1e753710a143b8bd7b687b79952ee
CRs-Fixed: 571731
diff --git a/CORE/HDD/src/wlan_hdd_main.c b/CORE/HDD/src/wlan_hdd_main.c
index 4845058..dfe76ee 100644
--- a/CORE/HDD/src/wlan_hdd_main.c
+++ b/CORE/HDD/src/wlan_hdd_main.c
@@ -1672,6 +1672,11 @@
            /* Change band request received */
            ret = hdd_setBand_helper(dev, ptr);
        }
+       else if(strncmp(command, "SETWMMPS", 8) == 0)
+       {
+           tANI_U8 *ptr = command;
+           ret = hdd_wmmps_helper(pAdapter, ptr);
+       }
        else if ( strncasecmp(command, "COUNTRY", 7) == 0 )
        {
            char *country_code;