regulator: max8893: Drop "_new" from probe callback

regulator: max8893: Drop "_new" from probe callback

The driver was introduced when .probe_new was the right probe callback
to use for i2c drivers. Today .probe is the right one (again) and the
driver was already switched in commit 964e186547b2 ("regulator: Switch
i2c drivers back to use .probe()") but the name continued to include
"_new". To prevent code readers wondering about what might be new here,
drop that part of the name.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230721073303.112597-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>