Add GNR-D to cpuinfoapp support

Change-Id: Ia9ee31ef4a5cb7d6677a0ec726345a57205c1108
Signed-off-by: Saitwal, Meghan <meghan.saitwal@intel.com>
diff --git a/src/cpuinfo_main.cpp b/src/cpuinfo_main.cpp
index b800e99..5fa1c06 100644
--- a/src/cpuinfo_main.cpp
+++ b/src/cpuinfo_main.cpp
@@ -407,6 +407,7 @@
         case spr:
         case emr:
         case gnr:
+        case gnrd:
         case srf:
         {
             // PPIN can be read through PCS 19