Add support for min_sdk_version

Add min_sdk_version properties and use it for aapt2
--min-sdk-version and --target-sdk-version flags.  Add an sdkContext
interface that any function that needs an sdk version can take in
order to get the values for the current module.

Bug: 110848854
Test: m checkbuild
Change-Id: Ic69f1f935d8b865ec77689350407df08bfac5925

java/app.go

@@ -81,7 +81,7 @@ type certificate struct {
 func (a *AndroidApp) DepsMutator(ctx android.BottomUpMutatorContext) {
 	a.Module.deps(ctx)
 	if !Bool(a.properties.No_framework_libs) && !Bool(a.properties.No_standard_libs) {
-		a.aapt.deps(ctx, String(a.deviceProperties.Sdk_version))
+		a.aapt.deps(ctx, sdkContext(a))
 	}
 }
 
@@ -117,7 +117,7 @@ func (a *AndroidApp) generateAndroidBuildActions(ctx android.ModuleContext) {
 	// TODO: LOCAL_PACKAGE_OVERRIDES
 	//    $(addprefix --rename-manifest-package , $(PRIVATE_MANIFEST_PACKAGE_NAME)) \
 
-	a.aapt.buildActions(ctx, String(a.deviceProperties.Sdk_version), linkFlags...)
+	a.aapt.buildActions(ctx, sdkContext(a), linkFlags...)
 
 	// apps manifests are handled by aapt, don't let Module see them
 	a.properties.Manifest = nil