include: sbi_domain: Fix permission test macros

The macros to test permissions must perform an exact match of all the
bits in the input with the desired permission bits. Otherwise, the check
returns false positives in those cases where only some of the desired
permissions are set in the input.

Fixes: 6c202c5e

 ("include: sbi: Add Smepmp specific access flags for PMP
entries")
Signed-off-by: Mayuresh Chitale <mchitale@ventanamicro.com>
Reviewed-by: Anup Patel <anup@brainfault.org>