USB: musb davinci buildfix

Trying once more to get this merged.  The original was submitted
for 2.6.27-rc2 or so, and never got correctly merged.  Neither
were any of the numerous subsequent resends.  Sigh.

  CC      drivers/usb/musb/davinci.o
drivers/usb/musb/davinci.c:35:32: error: mach/arch/hardware.h: No such file or directory
drivers/usb/musb/davinci.c:36:30: error: mach/arch/memory.h: No such file or directory
drivers/usb/musb/davinci.c:37:28: error: mach/arch/gpio.h: No such file or directory
drivers/usb/musb/davinci.c:373: error: redefinition of 'musb_platform_set_mode'
drivers/usb/musb/davinci.c:368: error: previous definition of 'musb_platform_set_mode' was here

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>