mtd: spi-nor: Stop reporting warning message when soft reset is not suported

commit 7a030abc upstream.

When the software reset command isn't supported, we now stop reporting
the warning message to avoid unnecessary warnings and potential confusion.

Reviewed-by: Dhruva Gole <d-gole@ti.com>
Reviewed-by: Michael Walle <michael@walle.cc>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Pratyush Yadav <pratyush@kernel.org>
Signed-off-by: "Chia-Lin Kao (AceLan)" <acelan.kao@canonical.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20231129064311.272422-2-acelan.kao@canonical.com


Signed-off-by: Mark Brown <broonie@kernel.org>
[YL: replace EOPNOTSUPP with ENOTSUPP in original patch, since upstream
commit cff49d58 ("spi: Unify error codes by replacing -ENOTSUPP with
-EOPNOTSUPP") is not backported.]
Signed-off-by: Yongxin Liu <yongxin.liu@windriver.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>