usb: phy: samsung: Remove unnecessary lines of register bit definitions

usb: phy: samsung: Remove unnecessary lines of register bit definitions

Remove unnecessary lines of register bit definitions in order
to enhance the readability. In this case, there are lines
per register offset definitions. There is no functional change.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>