hif/usb_api: unify platform specific patch file names

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
usb_api_k2_patch.c: use same style like usb_api_magpie_patch.c

Just other comment styles and tabs instead of spaces.
Some commented A_PRINFs was removed.

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
add new ZM_SOC_USB_DMA_RESET_OFFSET register

add and use ZM_SOC_USB_DMA_RESET_OFFSET
instead if magic number 0x118

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>