WIFI: Fix wimax teardown when wifi connected

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

Change-Id: I18e5ced62c8e4976f7a6835ba8c593930dac0586
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_frameworks_base into android-4.4_new