iwlwifi: pcie: change CSR reset in family 8000

This register is not present in 8000 family devices.
There is prph register instead.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Dor Shaish <dor.shaish@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

diff --cc drivers/net/wireless/iwlwifi/iwl-prph.h
Simple merge

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