ARM: dts: msm: Update default USB/NOC clock rates to SVS for 9x07

Reduce USB system clock and NOC frequencies to SVS levels in
default mode to improve power numbers. User can request to bump up
these clocks to max_nominal level using below sysfs node:
 -echo "enable" > /sys/class/udc/msm_hsusb/device/perf_mode

Change-Id: I8ef5ddbc18d1c56868e80b3cefd9816de29422b6
Signed-off-by: Manu Gautam <mgautam@codeaurora.org>