Prevent overlays on vCard import flows

Bug: 172252122
Test: manual with POC
Change-Id: I69c46f073f324005c3dd214447792fc20fe75a2b
Merged-In: I69c46f073f324005c3dd214447792fc20fe75a2b
(cherry picked from commit aa189a0daadf4d4cd8e00895c9bdbb8ac0ec9bb6)
(cherry picked from commit b423fdf941a10fc1498dcee0665e56fb1856bf4e)
diff --git a/Android.bp b/Android.bp
index 1fd8e8b..08288f8 100644
--- a/Android.bp
+++ b/Android.bp
@@ -32,6 +32,6 @@
         proguard_flags_files: ["proguard.flags"],
     },
 
-    sdk_version: "current",
+    sdk_version: "system_current",
     min_sdk_version: "21",
 }