src/drivers/pl011: Add verstage support

Build pl011 to support building vboot on arm platforms.

Change-Id: I1ddc372d558b380065ff944fccb0d84eb37d4213
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/25108
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
1 file changed