i2c: rzg2l: include u-boot/schedule.h

This TU currently relies on getting a declaration of schedule()
through some nested include. Include the proper header directly.

Signed-off-by: Rasmus Villemoes <ravi@prevas.dk>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>
1 file changed