usb: dwc3: resize txfifo of IN/INT endpoint before enabling it

USB IN/INT endpoint stalls when performing TX FIFO resize functionality
when IN/INT endpoint is already active i.e. usb endpoint is enabled and
usb request is pending with it. Fix this issue by making sure that TX
FIFO resize is performed before enabling endpoint which shall happen
after set_alt(1) and before any function queues request with its
allocated USB endpoint.

This commit also squashes the following commits from previous kernels:

  Revert "usb: dwc3: drop FIFO resizing logic"
  dwc3: gadget: Improve TX FIFO resize functionality
  dwc3: gadget: Use default TX FIFO size as 1024 bytes with each IN eps
  usb: gadget: Use mult as 3 for GSI related USB IN endpoint always
  USB: dwc3: gadget: Fix TxFIFO resizing logic
  dwc3: Preserve TxFIFO of IN/INT EP for UDC without tx-fifo-resize
  dwc3: gadget: Use TXFIFO register based on used dwc3 version
  dwc3: gadget: Increase TXFIFO size as 6KB for GSI IN endpoint
  usb: dwc3: Change TXFIFO size for GSI IN EP based on controller
  usb: dwc3: gadget: Fix TXFIFO resize logic for non-zero EPs
  usb: dwc3: Increase the TxFIFO resize factor

Change-Id: I13a590f87ab8492f7c95a15b2da9f00c9c63c4f9
Signed-off-by: Mayank Rana <mrana@codeaurora.org>
Signed-off-by: Jack Pham <jackp@codeaurora.org>