PSoC: Align 8 bytes functions configuration in ARMClang

PSoC64 functions are permitted to depend on the 8-byte aligment of
8-byte data items, while the NS startup file doesn't require code
to preserve 8-byte data objects. That makes a warning when building.

Signed-off-by: Jianliang Shen <jianliang.shen@arm.com>
Change-Id: If149282cbaca94e75e367116308a6e0fe933b18f
1 file changed