qcacld-3.0: Avoid race when uplayer triggers reassoc

When supplicant tries to reassoc AP, it will set PSK
before issue connection. In driver, it invokes function
__wlan_hdd_cfg80211_keymgmt_set_key and then
__wlan_hdd_cfg80211_connect.

__wlan_hdd_cfg80211_keymgmt_set_key puts
eWNI_SME_ROAM_SCAN_OFFLOAD_REQ to PE queue, then puts
WMA_ROAM_SCAN_OFFLOAD_REQ to WMA queue.

__wlan_hdd_cfg80211_connect puts SIR_HAL_ROAM_INVOKE to
WMA queue directly.

If the command SIR_HAL_ROAM_INVOKE is issued to fw before
WMA_ROAM_SCAN_OFFLOAD_REQ, then roaming scan is canceled
because scan mode is set.

To avoid this race, send SIR_HAL_ROAM_INVOKE to PE queue,
and then to WMA queue as well.

Change-Id: I08624efc466085e49fa4201deb221276ec5c260f
Rs-Fixed: 2344710