iwlagn: only perform necessary calibration at init time

During init time, only the necessary calibration should be performed. This
not only save time, also avoid uCode crash because lack of necessary information.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
1 file changed