[Feature][ZXW-158] copy ap's elfs debugging documents to elf_dc_ref in allbins.

Only Configure: No
Affected branch: master
Affected module: None
Is it affected on both ZXIC and MTK: only ZXIC
Self-test: Yes
Doc Update: No

Change-Id: I9b00b376b399a8c80ceb2b2a94c59228ca540f45
1 file changed