Use user-aware context in IMMS#queryInputMethodServicesInternal

As queryInputMethodServicesInternal is to query the installed IME apps
of the given userId with returning the list of InputMethodInfo, however,
there is a bug that it always initializes InputMethodInfo with user 0's
XML resources from the system context.

Fix this issue by using user-aware context to ensure creating
InputMethodInfo will load the correct resources settings with the
corresponding context of the userId.

Fix: 249081323
Test: atest CtsInputMethodTestCases
Change-Id: I47578c8bba5d9e04301ed3727ad1efa6496653e6