msm: clock-8084: Add usb reset support

USB needs to do some resets in the power up and down
sequence. Add the corresponding clocks to allow the driver
to use clock reset api to achieve this.

Change-Id: I9f3342ec51fb3f4314c4e4d056a95b8d27074088
Signed-off-by: Tianyi Gou <tgou@codeaurora.org>