Install VNDK libraries into vendor or product lib with flag

Install VNDK libraries into vendor or product lib when flag
'KEEP_VNDK' is set as false from build. This flag will be used to
test while deprecating VNDK step by step.

Bug: 290157355
Test: build succeded with DEPRECATE_VNDK succeded
Test: Cuttlefish boot succeded with sepolicy disabled
Change-Id: I05b166f054113ae2775df4e310916d0ea4af3fb6

cc/library.go

@@ -2271,7 +2271,7 @@ func (library *libraryDecorator) install(ctx ModuleContext, file android.Path) {
 
 			// do not install vndk libs
 			// vndk libs are packaged into VNDK APEX
-			if ctx.isVndk() && !ctx.IsVndkExt() {
+			if ctx.isVndk() && !ctx.IsVndkExt() && !ctx.Config().IsVndkDeprecated() {
 				return
 			}
 		} else if library.hasStubsVariants() && !ctx.Host() && ctx.directlyInAnyApex() {