Add required sphal back to swcodec APEX - DO NOT MERGE

SPHAL namespace is required as visible namespace in swcodec APEX, but
the description was removed from the manifest during mainline release
update. Adding sphal back to swcodec APEX so swcodec service can load
libraries in SPHAL namespace.

Bug: 168446433
Test: sphal namespace found from cuttlefish's swcodec ld.config.txt
Merged-In: Ibc0e0eee46762dac2825f2ff4c2cf6dcbeaea320
Change-Id: I43341348694e33d88663c6d6f8658a03abed0382