build(imx8mm): add MEASURED_BOOT and TBB build for imx8mm

Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com>
Change-Id: I13a981daab81e1fa7a5bdc2b1f4e6ee1507ce98c
2 files changed