iwlwifi: move iwlagn_fw_error to iwl-agn.c

Move this as part of iwl-core.c cleanup.

Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
3 files changed