[PATCH 1/2] dm: core: Add logging on unbind failure

[sjg at google.com]

This failure path is tricky to debug since it continues after failure and
there are a lot of error paths. Add logging to help.

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

 drivers/core/device-remove.c | 20 ++++++++++++--------
 drivers/core/uclass.c        |  4 ++--
 2 files changed, 14 insertions(+), 10 deletions(-)

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