WIFI: Fix wimax teardown when wifi connected

Due to patch:
https://github.com/CyanogenMod/android_frameworks_base/commit/f769f4cbc2aaac8d9d49f9ff79a6fe0affc4ff6e

Change-Id: I18e5ced62c8e4976f7a6835ba8c593930dac0586
Merge remote-tracking branch 'cyan/cm-11.0' into cm-11.0