DO NOT MERGE: Move translation entry point into translate.c.

The entry point to the translation code is currently called
packet_handler and lives in clatd.c. Move it into translate.c
and rename it to translate_packet, since that's what it does.

Also get rid of some redundant includes.

Bug: 11542311
Change-Id: I8529fb87f3a86ee6724fad54787c33a5e86c56ab
6 files changed