wext: Map the missing function call

Since the functions call were not mapped,signal strength
were not getting reported to userspace and network
connection was failing with poor network signal.Now
the right signal strengths are reported to the userspace.

Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
driver_wext: declare wext private lib functions up front for build to succeed

Change-Id: I6d6c7d5153738b0ddd4d217a513397987eeb7434
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
add private_lib for NL80211 and wext driver.

Copied from hardware/broadcom/wlan/bcmdhd/wpa_supplicant_8_lib and modified
to work with generic wext driver.

Change-Id: Id33647ac6c8ae7faa9ed0b7cd24c59e0c76fdd85
Signed-off-by: Vishal Bhoj <vishal.bhoj@linaro.org>
include private_lib makefile

Change-Id: I54c767bc2a8ab29a439ce7196e65626241d84b39
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>