mtd: spi-nor: spansion: use die erase for multi-die devices only

mtd: spi-nor: spansion: use die erase for multi-die devices only

Die erase opcode is supported in multi-die devices only. For single die
devices, default chip erase opcode must be used.

In s25hx_t_late_init(), die erase opcode is set only when the device is
multi-die.

Fixes: 461d0babb544 ("mtd: spi-nor: spansion: enable die erase for multi die flashes")
Cc: stable@kernel.org
Reviewed-by: Pratyush Yadav <pratyush@kernel.org>
Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Takahiro Kuwano <takahiro.kuwano@infineon.com>
Reviewed-by: Michael Walle <mwalle@kernel.org>
Signed-off-by: Pratyush Yadav <pratyush@kernel.org>