java_sdk_library - pass patch_module through to stubs library

When building java.lang classes it is necessary to compile them using
patch_module: "java.base". This change causes patch_module to be passed
through to the java_library created to compile the stubs to allow this
to be used to generate stubs for java.lang.

Test: m droid
Change-Id: I7c27953a5d782eeedd7f25e849ab444d28e28228