ANDROID: GKI: usb: xhci: Add support for secondary interrupters

Implement APIs to dynamically allocate and free secondary
event rings based upon interrupter number. Also add exported
APIs in usb core layer which allows secondary event ring
management via remote processor entity.

Change-Id: I5ee7d44d6cad8e35e22d3c1a027a1eec5d208585
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
Signed-off-by: Jack Pham <jackp@codeaurora.org>
Signed-off-by: Mayank Rana <mrana@codeaurora.org>
(cherry picked from commit 8d48fb82)
[connoro: squashed the following commits:
          a44f0d73 usb: xhci: Clear event handler busy flag upon
          event ring cleanup
          a1504b40 usb: xhci: Acknowledge pending events in
          secondary event ring
          a7e7dd8a usb: host: xhci: Fix bound check for
          interrupter number
          c4d9817a usb: core: Allow secondary event ring clean
          upon disconnect
          576c1e1f usb: host: xhci: Fix secondary event ring
          setup]
Bug: 151258428
Signed-off-by: Connor O'Brien <connoro@google.com>