display: Reconcile display HALs

Make the display HALs compile with/without the Qualcomm BSP
specific features so they can work with pure AOSP.
Change-Id: I1ad7282c4fe1fe7e3309afb530a07735f165ffbe
diff --git a/libgralloc/mapper.cpp b/libgralloc/mapper.cpp
index b3e371a..af536ad 100644
--- a/libgralloc/mapper.cpp
+++ b/libgralloc/mapper.cpp
@@ -353,6 +353,7 @@
                 break;
 
             }
+#ifdef QCOM_BSP
         case GRALLOC_MODULE_PERFORM_UPDATE_BUFFER_GEOMETRY:
             {
                 int width = va_arg(args, int);
@@ -368,6 +369,7 @@
                 res = 0;
             }
             break;
+#endif
         default:
             break;
     }