UPSTREAM: usb: dwc3: drop FIFO resizing logic

UPSTREAM: usb: dwc3: drop FIFO resizing logic

That FIFO resizing logic was added to support OMAP5
ES1.0 which had a bogus default FIFO size. I can't
remember the exact size of default FIFO, but it was
less than one bulk superspeed packet (<1024) which
would prevent USB3 from ever working on OMAP5 ES1.0.

However, OMAP5 ES1.0 support has been dropped by
commit aa2f4b16f830 ("ARM: OMAP5: id: Remove ES1.0
support") which renders FIFO resizing unnecessary.

Tested-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
(cherry picked from commit bc5081617faeb3b2f0c126dc37264b87af7da47f)

Conflicts:
	drivers/usb/dwc3/core.h

Change-Id: Id10f41fd06e4877c46a8d760ba95155499a9f46d
Signed-off-by: Wu Liang feng <wulf@rock-chips.com>