feat(lib): add EXTRACT_FIELD macro for field extraction

Introduce a new EXTRACT_FIELD macro to simplify the extraction
of specific fields from a value by shifting the value right
and applying the mask.

Change-Id: Iae9573d6d23067bbde13253e264e4f6f18b806c2
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
1 file changed