accel/ivpu: Fix typos in ivpu_pm.c

Replace "Filed" with an actual word.

Reviewed-by: Karol Wachowski <karol.wachowski@intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240930195322.461209-32-jacek.lawrynowicz@linux.intel.com


Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>