iwlwifi: pcie: move the ICT / non-ICT handling functions

The purpose of this is to be able to call these functions
from the interrupt handler and not from the primary
interrupt handler.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

diff --cc drivers/net/wireless/iwlwifi/pcie/rx.c
Simple merge