wifi: iwlwifi: move iwl-context-info header files

context info is PCIE specific, so it should be located in pcie
directory. The c files are already there, move also the header files.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250609211928.606f48f72bcd.I4b89d373d961146e5369d1aed9f625150de7bf7d@changeid