Input: snvs_pwrkey - tidy up error reporting in probe

Do not print the error twice when acquiring clock fails and drop the
redundant error message after devm_request_irq(), as the helper already
reports request failures internally.

Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
Link: https://patch.msgid.link/20260727101125.28291-1-phucduc.bui@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>