commit 193e8714 upstream.

There are CQSPI_MAX_CHIPSELECT elements in the ->f_pdata array so the >
should be >=.

Fixes: 14062341 ('mtd: spi-nor: Add driver for Cadence Quad SPI Flash Controller')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>