drivers: flash: flash_mspi_nor: indicate support for flash page layout

Flash MSPI NOR driver already has support for flash page layout, but did
not select the Kconfig symbol indicating so. Add the selection so
drivers can use the page layout api.

Signed-off-by: Daniel DeGrasse <ddegrasse@tenstorrent.com>

Author: danieldegrasse

drivers/flash/Kconfig.mspi

@@ -45,6 +45,7 @@ menuconfig FLASH_MSPI_NOR
 	select FLASH_MSPI
 	select FLASH_HAS_EXPLICIT_ERASE
 	select FLASH_JESD216
+	select FLASH_HAS_PAGE_LAYOUT
 	select GPIO if $(dt_compat_any_has_prop,$(DT_COMPAT_JEDEC_MSPI_NOR),reset-gpios) \
 		    || $(dt_compat_any_has_prop,$(DT_COMPAT_JEDEC_MSPI_NOR),supply-gpios)