Add GPIO manager. Get the PMIC interrupt handling working (along with power button and HP detect). Add some reg field defined instead of using raw numbers. Add PMIC info to debug ports screen. Refine PMIC driver ops a little bit.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17086 a1c6a512-1295-4272-9138-f99709370657
17 files changed