[netatalk] fix files to stop warnings.

WARNING: Unable to get checksum for netatalk SRC_URI entry netatalk-dbd.patch: file could not be found
WARNING: Unable to get checksum for netatalk SRC_URI entry netatalk.conf: file could not be found
WARNING: Unable to get checksum for netatalk SRC_URI entry AppleVolumes.default: file could not be found
WARNING: Unable to get checksum for netatalk SRC_URI entry afpd.conf: file could not be found
WARNING: Unable to get checksum for netatalk SRC_URI entry afpd.service: file could not be found
WARNING: Unable to get checksum for netatalk SRC_URI entry init: file could not be found