In order to be able to build ArmPlatformPkg components outside of
the context of a particular platform, add Null implementation of
NorFlashPlatformLib.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>