commonlib: add endian related accessor functions

This commit adds read/write functions for both big and
little endian interpretations. Additionally there are
variants that allow an offset to be provided into the
source buffer.

BUG=None
TEST=Wrote test harness for functions.  Also booted ARM QEMU
     through end of payload.

Change-Id: If44c4d489f0dab86a73b73580c039e364c7e517d
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/11677
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>

0 files changed, 0 insertions, 0 deletions