Convert CheckMinSdkVersion to use providers.

Next step is to convert it to use ModuleProxy once IsDepInSameApex is
converted to use providers.

Bug: 377723687
Test: Unit tests and compare the ninja and mk files generated.
Change-Id: I20cb052666fa95eb964e63e3302ac892d3324183
diff --git a/java/sdk_library.go b/java/sdk_library.go
index fafb448..cf31b50 100644
--- a/java/sdk_library.go
+++ b/java/sdk_library.go
@@ -931,6 +931,8 @@
 	RootLibraryName() string
 }
 
+var _ android.ApexModule = (*SdkLibrary)(nil)
+
 func (m *SdkLibrary) RootLibraryName() string {
 	return m.BaseModuleName()
 }
@@ -2153,13 +2155,10 @@
 }
 
 // Implements android.ApexModule
-func (module *SdkLibraryImport) ShouldSupportSdkVersion(ctx android.BaseModuleContext,
-	sdkVersion android.ApiLevel) error {
-	// we don't check prebuilt modules for sdk_version
-	return nil
+func (m *SdkLibraryImport) MinSdkVersionSupported(ctx android.BaseModuleContext) android.ApiLevel {
+	return android.MinApiLevel
 }
 
-// Implements android.ApexModule
 func (module *SdkLibraryImport) UniqueApexVariations() bool {
 	return module.uniqueApexVariations()
 }