dm: core: fix misleading debug message when matching compatible

dm: core: fix misleading debug message when matching compatible

A driver can have multiple compatible. When the id->compatible matches
for that driver, the first compatible supported by the driver is
currently returned, which gives the following confusing message:

   - found match at 'rk3588_syscon': 'rockchip,rk3588-sys-grf' matches 'rockchip,rk3588-pmugrf'

Considering that the compatible passed in argument is necessarily the
one that exactly matched to enter this code path, there's no need to do
some elaborate logic, just print the driver name and the compatible
passed in argument.

Fixes: d3e773613b6d ("dm: core: Use U-Boot logging instead of pr_debug()")
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Reviewed-by: Simon Glass <sjg@chromium.org>