regulator: core: Fix missing error return from regulator_bulk_get()

regulator: core: Fix missing error return from regulator_bulk_get()

In commit 6eabfc018e8d ("regulator: core: Allow specifying an initial
load w/ the bulk API") I changed the error handling but had a subtle
that caused us to always return no error even if there was an
error. Fix it.

Fixes: 6eabfc018e8d ("regulator: core: Allow specifying an initial load w/ the bulk API")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20220809142738.1.I91625242f137c707bb345c51c80c5ecee02eeff3@changeid
Signed-off-by: Mark Brown <broonie@kernel.org>