USB: OTG: Fix Full speed USB Headset issue

Some Full speed USB headsets requires higher cross over voltage. The
cross over voltage is directly proportional to the phy 3.3 rail voltage.
The current code uses [3.07 - 3.3] range for this regulator and it is
supplied with 3.075V.  To get 3.3V supply, use [3.3 - 3.3] range in
the host mode.

CRs-Fixed: 563496
Change-Id: I3d1705fd346212ecf42c4943995e43964ad14dc5
Signed-off-by: ChandanaKishori Chiluveru <cchilu@codeaurora.org>