[PATCH v4 20/42] sandbox: i2c: Support i2c emulation with of-platdata

[Simon Glass]

At present the i2c emulators require access to the devicetree, which is
not possible (by design) with of-platdata.

Add a way for drivers to record the of-platdata index of their emulator,
so that we can still find the emulator.

This allows i2c emulation to work with of-platdata.

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

(no changes since v1)

 drivers/i2c/i2c-emul-uclass.c | 17 +++++++++++++++--
 drivers/rtc/sandbox_rtc.c     | 13 +++++++++++++
 include/i2c.h                 | 15 +++++++++++++++
 3 files changed, 43 insertions(+), 2 deletions(-)

Applied to u-boot-dm/next, thanks!