fix(plat/mediatek/mt8195): fix coverity fail
fix(plat/mediatek/mt8195): fix coverity fail

Add break to correct the driver flow.

Signed-off-by: Rex-BC Chen <1a245285ae1d21f93dbeddaaaf2a535a19437cbb@mediatek.com>
Change-Id: Ie20f402d543fbf90172671e007fad30d5dc2ab10

achingupta/arm-trusted-firmware,achingupta/arm-trusted-firmware