USB: gadget: qti: Add support for remote wakeup capability

This change is used to populate bmAttributes passed from
DT for a particular composition to enable high-speed remote
wakeup capability.

Change-Id: I69f00c264b9a5e3db3f38b2b47a1d859f7d36623
Signed-off-by: Pratham Pratap <prathampratap@codeaurora.org>