gralloc: Enable Gralloc4

Gralloc4 changes were merged as disabled by default. This change
switches Gralloc4 on

CRs-Fixed: 2660020
Change-Id: I413faa13f836c66f4ac6ea4071068e83d82d3a41
diff --git a/gralloc/android.hardware.graphics.mapper-impl-qti-display.xml b/gralloc/android.hardware.graphics.mapper-impl-qti-display.xml
index 89899cb..4bb2bd8 100644
--- a/gralloc/android.hardware.graphics.mapper-impl-qti-display.xml
+++ b/gralloc/android.hardware.graphics.mapper-impl-qti-display.xml
@@ -31,7 +31,7 @@
         <name>vendor.qti.hardware.display.mapper</name>
         <transport arch="32+64">passthrough</transport>
         <version>3.0</version>
-        <!-- <version>4.0</version> -->
+        <version>4.0</version>
         <interface>
             <name>IQtiMapper</name>
             <instance>default</instance>
@@ -42,7 +42,7 @@
         <transport arch="32+64">passthrough</transport>
         <impl level="generic"></impl>
         <version>3.0</version>
-        <!-- <version>4.0</version> -->
+        <version>4.0</version>
         <interface>
             <name>IMapper</name>
             <instance>default</instance>