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/snapshot_prebuilt.go

@@ -605,6 +605,7 @@ func (p *snapshotLibraryDecorator) link(ctx ModuleContext, flags Flags, deps Pat
 		ctx.SetProvider(SharedLibraryInfoProvider, SharedLibraryInfo{
 			SharedLibrary:           in,
 			UnstrippedSharedLibrary: p.unstrippedOutputFile,
+			Target:                  ctx.Target(),
 
 			TableOfContents: p.tocFile,
 		})