Platform: Cleanup and simplification of IAR link scripts

Removed some unused clutter and simplified linking at specific
addresses.

Place __ramfunc functions in TFM_RAM_CODE block if S_RAM_CODE_START
is defined otherwise place it in ROM. Fixes psoc64 issues.

Disable packed initializers for secure image, may cause link
errors otherwise.

Renamed stm32l5xx_flash_ns.icf to stm32l5xx_ns.icf

Signed-off-by: TTornblom <thomas.tornblom@iar.com>
Change-Id: Ief0f0cb6e6faa607f86dc723579124ffb09ed93c
15 files changed