chore(npcm845x): remove pauth_helpers.S additions in platform makefile

Currently 'pauth_helpers.S' is added if pauth is enabled from main
level makefile.

Change-Id: I33800e280daea6dba6d11e2c494101b369cd8a0b
Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>
1 file changed