media: venus: hfi_venus: Write to VIDC_CTRL_INIT after unmasking interrupts

commit d74e4816 upstream.

The startup procedure shouldn't be started with interrupts masked, as that
may entail silent failures.

Kick off initialization only after the interrupts are unmasked.

Cc: stable@vger.kernel.org # v4.12+
Fixes: d96d3f30

 ("[media] media: venus: hfi: add Venus HFI files")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>