Add Target to cc.SharedLibraryInfo

Dependencies from common arch modules like java libraires to cc modules
may need to retrieve the Target of the library, add it to
SharedLibraryInfo.

Bug: 176593487
Test: cc_test.go
Change-Id: I93ab9da5fab2ccc42c6b483a6d83c071b541d1e6

cc/linkable.go

@@ -168,6 +168,7 @@ func HeaderDepTag() blueprint.DependencyTag {
 type SharedLibraryInfo struct {
 	SharedLibrary           android.Path
 	UnstrippedSharedLibrary android.Path
+	Target                  android.Target
 
 	TableOfContents       android.OptionalPath
 	CoverageSharedLibrary android.OptionalPath