ARMV7/Vexpress: add missing get_ticks() and get_tbclk()

commit f31a911fe (arm, post: add missing post_time_ms for arm)
enables get_ticks and get_tbclk for all arm based boards,
arm/vexpress also needs these functions to work.

Signed-off-by: Liming Wang <walimisdev@gmail.com>
Acked-by: Matt.Waddel@linaro.org
1 file changed