tests: syscalls: ignore faults, they are intentional

We are blowing up the kernel here intentionally, so ignore the faults on
some platforms.

Signed-off-by: Anas Nashif <[email protected]>

Author: nashif

tests/kernel/mem_protect/syscalls/testcase.yaml

@@ -1,4 +1,4 @@
 tests:
   kernel.memory_protection.syscalls:
     filter: CONFIG_ARCH_HAS_USERSPACE
-    tags: core security userspace
+    tags: core security userspace ignore_faults