We usually do cleanup in reverse order of init. Currently in case of
error rz_ssi_release_dma_channels() done in the reverse order. This
patch improves error handling in rz_ssi_probe() error path.

While at it, use "goto cleanup" style to reduce code duplication.
Reported-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20220728092612.38858-1-biju.das.jz@bp.renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>