This change replaces `struct cse_layout_regions` with an array of
`struct region` and introduces enums for DP and BP[1-4]. This makes it
easier to loop over the different regions in following changes.
BUG=b:189177186
Change-Id: If3cced4506d26dc534047cb9c385aaa9418d8522
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58214
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>