Kconfigs: Various: Fix some SPL, TPL and ARM64 dependencies

Several options are presenting themselves on a various boards
where the options are clearly not used.  (ie, arm64 options on
arm9, or SPL/TPL options when SPL or TPL are not defined)

This patch is not attempting to be a complete list of items, but
more like low hanging fruit.

This patch attempts to reduce some of the menuconfig noise
by defining dependencies so they don't appear when not used.

Signed-off-by: Adam Ford <aford173@gmail.com>