rk3288: Fix & vs && mix up in hdmi driver

Change-Id: I54650671adaef3bc129c662d6e972474c869afaa
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/10859
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins)
1 file changed