Set min_sdk_version

This was done via the hard-coded list in build/soong.

Bug: 158059172
Test: m
Merged-In: I2bb8e42e9b4a4a1d731fa679f4f5f0bb01ef0414
Change-Id: I2bb8e42e9b4a4a1d731fa679f4f5f0bb01ef0414
(cherry picked from commit 4c82dd5d3e767fe9935b2d7e94d95c518309b0f7)
diff --git a/Android.bp b/Android.bp
index 874bd7e..0193826 100644
--- a/Android.bp
+++ b/Android.bp
@@ -286,6 +286,7 @@
         "//system/security/keystore/tests",
         "//test/vts-testcase/security/avb",
     ],
+    min_sdk_version: "29",
     apex_available: [
         "//apex_available:platform",
         "com.android.neuralnetworks",