Wlan: Sync Prima wlan with kk_2.7-stable

commit 808c4d1649f20d43fd5aaeb2fc349f8c8bf93a4e
Author: Mihir Shete <smihir@qti.qualcomm.com>
Date:   Thu May 8 13:02:05 2014 +0530

    wlan: fix VOSS packet leak

    The VOSS API to return packets to the system
    had a bug which causes packet leak, the problem
    occurs when low resource condition is hit and
    the API is called to return a chain of VOSS packets
    to the system. When the condition is hit the VOSS
    packets are not added to the free or replenish
    list and they are lost forever from the system.

    Change-Id: I62d9238ba4ccb62365443650c8ad765c5042826f
    CRs-Fixed: 653612

commit 422cf50a777047ef3516f1c1195d5ddb3dd0af9a
Author: Sameer Thalappil <sameert@qca.qualcomm.com>
Date:   Wed Aug 7 15:46:55 2013 -0700

    wlan: Increase SSR timeout value

    Increase the SSR timer during SSR notification.

    Change-Id: Id800a6eb0a4cf593a02a104ccffc856f518db949
    CRs-Fixed: 522868

commit bcc8e333400a6496ade9fc15920eef48ef6accec
Author: Mukul Sharma <mukul@qti.qualcomm.com>
Date:   Thu Apr 24 13:24:12 2014 +0530

    wlan: Host is not sending stop roam scan offload properly

    When Disconnect happen, Host need to send the stop roam
    scan offload (ROAM_SCAN_OFFLOAD_STOP) but due to recent
    changes(regression) host is issuing this cmd as ZERO
    (which is not a valid RSO cmd).

    Change-Id: Ie3f0407a6c867d14386d5ca83a956d2b8fef6eb3
    CRs-Fixed: 644688

Change-Id: Ic5e39b8b291bdcaa63e58c04dd538cf2bb15ca74