accel/ivpu: Fix ivpu_reset_engine_fn merge issue

ivpu_reset_engine_fn and ivpu_reset_engine_fops were separated during
merge so move them back together to keep the file consistent.

Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240214081305.290108-7-jacek.lawrynowicz@linux.intel.com