* USB host register definitions added. * Extracted common register and bitfield definitions from 'otg_fs.h' and 'otg_hs.h' into new file 'otg_common.h'. Modified usb low-level drivers to adopt to new style of bitfields. * Fixed typo OTG_GOTGIN -> OTG_GOTGINT (according to the datasheet) Signed-off-by: Amir Hammad <amir.hammad@hotmail.com>