Platform: Add CMake configurable flash sizes to Corstone-310

Add possibility to configure flash partition sizes in Corstone-310
using FLASH_S_PARTITION_SIZE and FLASH_NS_PARTITION_SIZE.

Signed-off-by: Gabor Toth <gabor.toth@arm.com>
Change-Id: I51bce0d6b60eaefd86f08847ca9f9651d756ebbc
5 files changed