crespo: rfkill: fix unbalanced irq

BlueDroid makes disable call to rfkill which it is already disabled
causing unbalanced irq which prevents the device from going to sleep

Based on the same fix for aries by Pawit Pornkitprasan <p.pawit@gmail.com>
https://github.com/CyanogenMod/android_kernel_samsung_aries/commit/19a208a64958ff0cefb43c7b1623307ca090edd2

Change-Id: If0286bd1d37131b6dd140818287cfe6537b3195e