staging: r8188eu: remove header file odm_reg.h

After removing unused register definitions from odm_reg.h there are
only two definitions left. Move them into odm.h and remove odm_reg.h.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210913090831.13803-2-straube.linux@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>