iwlwifi: seperate disconnected antenna function
iwlwifi: seperate disconnected antenna function

Disconnected antenna algorithm is seperated into its own function from chain noise
calibration routine for better code management.

Signed-off-by: Shanyu Zhao <787658783cd3de1482e127f73a92144d6bd0f729@intel.com>
Signed-off-by: Wey-Yi Guy <15ba08e2ad0b84ec2e6b8e47b27706f8a8e5edd0@intel.com>
Signed-off-by: John W. Linville <2a53bac7a5d324865ef46ec4c38b2c0fba1456b4@tuxdriver.com>

KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs