PE test 16: fix parsing of mem-side cache level (#453)

- seventh byte of MPAM descriptor 1 captures level for
  mem side cache.

Signed-off-by: Amrathesh <amrathesh@arm.com>

test_pool/pe/operating_system/test_c016.c

@@ -29,6 +29,8 @@
 #define SLC_TYPE_UNKNOWN 0
 #define SLC_TYPE_PPTT_CACHE 1
 #define SLC_TYPE_MEMSIDE_CACHE 2
+#define MEM_CACHE_LVL_MASK 0xFF
+#define MEM_CACHE_LVL_SHIFT 56
 
 static void payload(void)
 {
@@ -155,7 +157,8 @@ static void payload(void)
  /* check if mem-side cache matches with PE proximity domain
  and cache level == 1 for mem-side LLC (based on assumption that
  mem-cache nearer to memory is LLC) */
- if ((desc2 == pe_prox_domain) && (desc1 == MEM_CACHE_LEVEL_1)) {
+ if ((desc2 == pe_prox_domain) &&
+ ((desc1 >> MEM_CACHE_LVL_SHIFT) & MEM_CACHE_LVL_MASK) == MEM_CACHE_LEVEL_1) {
  mem_llc_msc_found = 1;
  /* Select resource instance if RIS feature implemented */
  if (ris_supported)