remoteproc: imx_dsp_rproc: Only reset carveout memory at RPROC_OFFLINE state

remoteproc: imx_dsp_rproc: Only reset carveout memory at RPROC_OFFLINE state

Do not reset memory at suspend and resume stage, because some
memory is used to save the software state for resume, if it is cleared,
the resume operation can fail.

Fixes: c4c432dfb00f ("remoteproc: imx_dsp_rproc: Add support of recovery and coredump process")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Iuliana Prodan <iuliana.prodan@nxp.com>
Link: https://lore.kernel.org/r/20251218071750.2692132-1-shengjiu.wang@nxp.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>