auxdisplay: img-ascii-lcd: Only build on archs that have IOMEM

This avoids the MODPOST error:

ERROR: "devm_ioremap_resource" [drivers/auxdisplay/img-ascii-lcd.ko] undefined!

Signed-off-by: Thomas Meyer <[e-mail]>
Acked-by: Randy Dunlap <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/auxdisplay/Kconfig

···
 
 config IMG_ASCII_LCD
 	tristate "Imagination Technologies ASCII LCD Display"
+	depends on HAS_IOMEM
 	default y if MIPS_MALTA || MIPS_SEAD3
 	select SYSCON
 	help