Rename macros and types to namespace their usage

Macros and types have been renamed accordingly to namespace them by
their usage in the new kernel driver source tree structure.

This is done in a separate commit from the restructuring to avoid Git
from seeing some of the moved files as new ones because they have been
both moved and modified at the same time and thus losing the connection
in the history.

Change-Id: Icd4d8e8c76779479b5b46a55bf1d4f78a629c281
Signed-off-by: Mikael Olsson <mikael.olsson@arm.com>