msm: 8960: usb: Fix gpiolib warning

Fix gpiolib warning by using sleep variant gpio API to access
PMIC gpio while powering up USB VBUS.

Change-Id: I8d52a8c7dc7d7c709bcff3acefb93b52acf6bf73
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
1 file changed