ENGR00161848 mx5x: usb: fix build error

ENGR00161848 mx5x: usb: fix build error

Fix the build error for mx5x

arch/arm/plat-mxc/usb_common.c: In function 'fsl_usb_host_init':
arch/arm/plat-mxc/usb_common.c:526:
error: 'UCTRL_OVER_CUR_POL' undeclared (first use in this function)
arch/arm/plat-mxc/usb_common.c:526: error:
(Each undeclared identifier is reported only once
		arch/arm/plat-mxc/usb_common.c:526:
error: for each function it appears in.)
arch/arm/plat-mxc/usb_common.c:529:
error: 'UCTRL_OVER_CUR_DIS' undeclared (first use in this function)
arch/arm/plat-mxc/usb_common.c: In function 'usbotg_init':
arch/arm/plat-mxc/usb_common.c:840:
error: 'UCTRL_OVER_CUR_POL' undeclared (first use in this function)
arch/arm/plat-mxc/usb_common.c:843:
error: 'UCTRL_OVER_CUR_DIS' undeclared (first use in this function)
make[1]: *** [arch/arm/plat-mxc/usb_common.o] Error 1
make: *** [arch/arm/plat-mxc] Error 2

Signed-off-by: Peter Chen <peter.chen@freescale.com>