[PATCH] drivers: mtd: spi: Use correct 4 byte mode enablement for ISSI SPI flash devices alongside spi-nor-tiny.c subsystem

[Nathan Barrett-Morrison]

Hi All,

I noticed this was missing from the spi-nor-tiny.c subsystem while trying
to use an ISSI SPI flash device with the U-Boot SPL.

This patch will allow 4 byte addressing mode to be enabled with ISSI flash
devices while inside the U-Boot SPL / using spi-nor-tiny.c.

Sincerely,
Nathan