Sansa AMS: use the AS3514 ADC driver
Move the ADC defines to as3514.h, and make adc-target.h only include as3514.h
Implement the missing API (ascodec_readbytes, ascodec_(un)lock)

Revert the changes to the PP-specific arm/ascodec-target.h in r19073,
use a AS3525 specific ascodec-target.h while moving the AS3514 specific
code in export/as3514.h

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19076 a1c6a512-1295-4272-9138-f99709370657
7 files changed