staging: dwc2: make all the dwc2_set_param* functions void

We were not checking the return value from any of these functions,
so make them void functions

Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/staging/dwc2/core.c
Simple merge

diff --cc drivers/staging/dwc2/core.h
Simple merge

diff --cc drivers/staging/dwc2/hcd.h
Simple merge