Bluetooth: Fix BT_EN not made high in specific usecase

Usecase:
  1) WLAN ON triggered first and then immediately BT
     ON triggered.
  2) As WLAN ON triggered first, before pulling WL_EN to high
     it will wait for 100ms as BT_EN is low.
  3) WLAN timed out first and pulls WL_EN to high and
     in mean time BT_EN is checking WL_EN status to pull BT_EN to high.

Expected behavior: BT_EN must pull high before sending version command.

Observed behavior: BT_EN is not pulled high as WL_EN state changes
from low to high. While BT_EN checking the WL_EN state.

Fix: Check BT_EN status and pull it to high if it not set to high
Change-Id: I13e209ac4e1523d377f252aa5c0d243abeb86af4
Signed-off-by: Balakrishna Godavarthi <bgodavar@codeaurora.org>