iwlwifi: mvm: support family 8000 C step

C step functionality in the driver is exactly the same as
B step besides the ucode name that present as iwlwifi-8000C-xx.ucode
instead of iwlwifi-8000B-xx.ucode

Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

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

diff --cc drivers/net/wireless/iwlwifi/mvm/nvm.c
Simple merge

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