Revert "staging: greybus: Fix capitalization and punctuation inconsistencies"

Revert "staging: greybus: Fix capitalization and punctuation inconsistencies"

This reverts commit 30db8460f984a7f5299b6e07ea8a57cd09fc9557.

The offending commit tried to make the error messages of a few Greybus
drivers in staging more consistent by capitalising messages, but the
rest of the Greybus code do not follow this style so the change ended up
introducing an inconsistency instead.

Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20240909124853.9213-1-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>