Graphics: Migrate graphics.common HAL to version 6

- Update defaults to V6 instead of V5
- Update older dependent HALs to also reference V6

Test: Builds
Flag: EXEMPT build change
Bug: 368395888
Change-Id: I542c1c638b9d63c2510b11d04d6ed98477780af7
diff --git a/graphics/mapper/4.0/utils/vts/Android.bp b/graphics/mapper/4.0/utils/vts/Android.bp
index c5f124c..1be460e 100644
--- a/graphics/mapper/4.0/utils/vts/Android.bp
+++ b/graphics/mapper/4.0/utils/vts/Android.bp
@@ -48,7 +48,7 @@
     ],
     export_static_lib_headers: [
         "android.hardware.graphics.allocator@4.0",
-        "android.hardware.graphics.common-V5-ndk",
+        "android.hardware.graphics.common-V6-ndk",
         "android.hardware.graphics.mapper@4.0",
     ],
     export_include_dirs: ["include"],