feat(drtm): update references to DRTM beta0

Update all references to DRTM beta0 to be 1.0 instead.

Signed-off-by: Stuart Yoder <stuart.yoder@arm.com>
Change-Id: Ieda70f26f3be42f4705e9b267706674c94f120f2
diff --git a/include/plat/common/plat_drtm.h b/include/plat/common/plat_drtm.h
index 81d6d46..07545a6 100644
--- a/include/plat/common/plat_drtm.h
+++ b/include/plat/common/plat_drtm.h
@@ -26,7 +26,7 @@
 } __attribute__((packed)) drtm_mem_region_t;
 
 /*
- * Memory region descriptor table structure as per DRTM beta0 section 3.13
+ * Memory region descriptor table structure as per DRTM 1.0 section 3.13
  * Table 11 MEMORY_REGION_DESCRIPTOR_TABLE
  */
 typedef struct {