TF-M: Update cmake version

"CMake 3.10 or higher is required.  You are running version 3.7.2", with
a list of 3.10 -> 3.14 supported. Lets move to 3.14 as its the current
TF-M support make version.

Signed-off-by: Benjamin Copeland <ben.copeland@linaro.org>
Change-Id: Ia4cf658d74611e1f2924748be5039b26e6c61924
2 files changed