spi: spi-geni-qcom: Rename the label unmap_if_dma

The code at unmap_if_dma label doesn't contain unmapping dma anymore but
has only fsm reset.

Rename it to reset_if_dma accordingly.

No functional change.

Signed-off-by: Vijaya Krishna Nivarthi <quic_vnivarth@quicinc.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/1696614170-18969-1-git-send-email-quic_vnivarth@quicinc.com


Signed-off-by: Mark Brown <broonie@kernel.org>