USB: dwc: Reduce TxFIFO of non burst Bulk In endpoint to 1K from 3K

Some portion of the DWC3 controller TxFIFOs memory(29K) is used for
storing QDSS BAM data and descriptors (21K).  When QDSS is present
in the configuration, 8K is only left for TxFIFOs.  QDSS data endpoint
(burst capable Bulk In) requires 3K TxFIFO for higher throughputs.
Reduce non-burst capable In endpoint TxFIFO from 3K to 1K which
allows DIAG and ADB interfaces to co-exist with QDSS in a configuration.

Change-Id: Id999b7253c0192013f937128cf2f0a2b61f2630b
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>