Set min_sdk_version to be part of mainline modules

Modules contributing mainline modules (APK/APEX) should set
min_sdk_version as well as apex_available.

For now setting min_sdk_version doesn't change build outputs.
But build-time checks will be added soon.

Bug: 152655956
Test: m
Merged-In: Ib206ae858601b0dca6dccb09e8c53028feef0362
Merged-In: I6cfff21dcaf861392f8b69d97195831cdda4c1be
Change-Id: I6cfff21dcaf861392f8b69d97195831cdda4c1be
(cherry picked from commit 669c6bb63c)

Android.bp

@@ -1,8 +1,11 @@
 cc_library_static {
     name: "libavcdec",
     vendor_available: true,
-    host_supported:true,
-    shared_libs: ["liblog", "libcutils",],
+    host_supported: true,
+    shared_libs: [
+        "liblog",
+        "libcutils",
+    ],
 
     cflags: [
         "-fPIC",
@@ -241,13 +244,21 @@ cc_library_static {
         // cfi: true,
         blacklist: "libavc_blacklist.txt",
     },
+    apex_available: [
+        "//apex_available:platform", // used by libstagefright_soft_avcdec
+        "com.android.media.swcodec",
+    ],
+    min_sdk_version: "29",
 }
 
 cc_library_static {
     name: "libavcenc",
     vendor_available: true,
     host_supported: true,
-    shared_libs: ["liblog", "libcutils",],
+    shared_libs: [
+        "liblog",
+        "libcutils",
+    ],
 
     cflags: [
         "-DNDEBUG",
@@ -512,6 +523,11 @@ cc_library_static {
         // cfi: true,
         blacklist: "libavc_blacklist.txt",
     },
+    apex_available: [
+        "//apex_available:platform", //due to libstagefright_soft_avcenc
+        "com.android.media.swcodec",
+    ],
+    min_sdk_version: "29",
 }
 
 subdirs = ["test"]