ANDROID: fix ABI break after symbols removal

Users of such symbols have been notified and are in agreement.

7 function symbol(s) removed
  'int xhci_sideband_add_endpoint(struct xhci_sideband*, struct usb_host_endpoint*)'
  'int xhci_sideband_create_interrupter(struct xhci_sideband*, int, int, bool)'
  'int xhci_sideband_enable_interrupt(struct xhci_sideband*, u32)'
  'struct xhci_sideband* xhci_sideband_register(struct usb_device*)'
  'int xhci_sideband_remove_endpoint(struct xhci_sideband*, struct usb_host_endpoint*)'
  'void xhci_sideband_remove_interrupter(struct xhci_sideband*)'
  'void xhci_sideband_unregister(struct xhci_sideband*)'

Bug: 394470945
Bug: 399809445
Change-Id: Ie553e3ccf96def4f2e9f3deffbf498296b082325
Signed-off-by: Carlos Llamas <cmllamas@google.com>
(cherry picked from commit b2ae7d71)
[Lee: Resolved some surrounding diff conflicts - some of the original patch wasn't relevant]
Signed-off-by: Lee Jones <joneslee@google.com>