Add INIT_ATTR to some low-hanging fruit in the X1000 code:
GPIO init, GPIO initial state tables, clock init, and DMA init.
Change-Id: Ia02b20945da1bbed103e2e01eaf60553eb5f72d4
Future-proofing against newer versions of GCC/binutils which
are stricter about the use of 'inline' functions in headers.
Change-Id: Id620812ed340f0d790ba6c5b8b5cb1d700acfbbf
This streamlines the boot code a bit and reduces target specific
boilerplate. The clock init hack used by the bootloader has been
"standardized" and works for the main Rockbox binary now, so you
can boot rockbox.bin over USB without special hacks.
Change-Id: I7c1fac37df5a45873583ce6818eaedb9f71a782b
