power: supply: max17042_battery: log SOC threshold using debug log level

(upstream commit eaa2c490)

There's no need to print a message on every change in battery percentage
on regular log levels.

Signed-off-by: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2 jobs for max17042_dbg_msg in 67 minutes and 45 seconds
Status Job ID Name Coverage
  Build
passed #366872
librem5
build:aarch64

00:37:09

passed #366873
librem5:arm64
build:deb

01:07:45