Platform: Reset LMA to RAM for sections

Pure RAM sections like bss following a previous section with an
'AT> FLASH' leads default LMA to FLASH. Reset LMA to RAM by assigning
an 'AT> RAM' at end of these kinds of sections.

Change-Id: I21ca86363c8b72d0425afe65436e6d0b9c3182bd
Signed-off-by: Ken Liu <ken.liu@arm.com>
8 files changed