wifi: iwlwifi: Implement loading and setting of fragmented pnvm image

wifi: iwlwifi: Implement loading and setting of fragmented pnvm image

Save the pnvm payloads in several DRAM segments (not only in one as
used to). In addition, allocate a FW structure in DRAM that holds the
segments' addresses and forward its address to the FW. It's done when
FW has the capability to handle pnvm images this way (helps to process
large pnvm images).

Signed-off-by: Alon Giladi <alon.giladi@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230606103519.dbdad8995ce1.I986213527982637042532de3851a1bd8a11be87a@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>