[PATCH 12/20] sandbox: Fix up building for of-platdata

[Simon Glass]

There is no devicetree with of-platdata. Update a few uclasses to allow
them to be built for sandbox_spl. Also drop the i2c-gpio from SPL to avoid
build errors, since it does not support of-platdata.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 drivers/i2c/Makefile          | 2 +-
 drivers/i2c/i2c-emul-uclass.c | 2 ++
 drivers/rtc/rtc-uclass.c      | 2 ++
 3 files changed, 5 insertions(+), 1 deletion(-)

Applied to u-boot-dm, thanks!