mtd: spi-nor: print flash ID instead of name

We saw flash ID collisions which make the flash name unreliable. Print
the manufacturer and device ID instead of the flash name.

Lower the print to dev_dbg to stop polluting the kernel log.

Suggested-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20231215082138.16063-2-tudor.ambarus@linaro.org


Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>