graphics: rev IAllocator/IMapper to 4.0

Rev the IAllocator/IMapper HIDL interfaces to 4.0. This patch is
a copy paste from IAllocator/IMapper 3.0.

Bug: 136016160
Test: Compiles and boots

Change-Id: Ia7f159f97fe0f812b5f0e10a850715364090883c
diff --git a/compatibility_matrices/compatibility_matrix.current.xml b/compatibility_matrices/compatibility_matrix.current.xml
index 6e1bc8f..3e83cdc 100644
--- a/compatibility_matrices/compatibility_matrix.current.xml
+++ b/compatibility_matrices/compatibility_matrix.current.xml
@@ -195,8 +195,8 @@
     </hal>
     <hal format="hidl" optional="false">
         <name>android.hardware.graphics.allocator</name>
-        <version>2.0</version>
         <version>3.0</version>
+        <version>4.0</version>
         <interface>
             <name>IAllocator</name>
             <instance>default</instance>
@@ -212,8 +212,8 @@
     </hal>
     <hal format="hidl" optional="false">
         <name>android.hardware.graphics.mapper</name>
-        <version>2.1</version>
         <version>3.0</version>
+        <version>4.0</version>
         <interface>
             <name>IMapper</name>
             <instance>default</instance>