Merge tag 'dm-pull-10apr20-take2' of git://git.denx.de/u-boot-dm

Functions for reading indexed values from device tree
Enhancements to 'dm' command
Log test enhancements and syslog driver
DM change to read parent ofdata before children
Minor fixes

diff --cc arch/sandbox/dts/test.dts
Simple merge

diff --cc include/dm/device.h
Simple merge

diff --cc include/log.h
Simple merge

diff --cc include/test/ut.h
Simple merge

diff --cc test/dm/Makefile
Simple merge