ARC: Check that ISR and exception stacks are proper aligned

CONFIG_ISR_STACK_SIZE and CONFIG_ARC_EXCEPTION_STACK_SIZE are
used in arc asembler code without C wrapper on them with following
manner:

---------------------------->8----------------------------
/#define INIT_STACK z_interrupt_stacks
/#define INIT_STACK_SIZE CONFIG_ISR_STACK_SIZE

	mov_s sp, INIT_STACK
	add sp, sp, INIT_STACK_SIZE
---------------------------->8----------------------------

In result we can get stack unaligned if we have
CONFIG_ISR_STACK_SIZE or CONFIG_ARC_EXCEPTION_STACK_SIZE
values unaligned. There is no point to have unaligned stack
size - so let's check against such configurations in
compile time.

Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com>
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>