release: Bump aconfig flags extension to AP4A

Change-Id: Ia980bd605e8416b3268f476a902b4c29d7f58503
Signed-off-by: Jis G Jacob <studiokeys@blissroms.org>
diff --git a/release/release_config_map.mk b/release/release_config_map.mk
index 7bf4b7a..fbaffa4 100644
--- a/release/release_config_map.mk
+++ b/release/release_config_map.mk
@@ -14,7 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-TARGET_RELEASE := ap3a
+TARGET_RELEASE := ap4a
 
 # Get the directory for this file, and use that instead of a fixed path.
 local_dir := $(dir $(lastword $(MAKEFILE_LIST)))