scsi: eesox: use __iomem pointers for MMIO

ARM is moving to stricter checks on readl/write functions,
so we need to use the correct types everywhere.

Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

drivers/scsi/arm/eesox.c

@@ -273,7 +273,7 @@ static void eesoxscsi_buffer_out(void *buf, int length, void __iomem *base)
 {
 	const void __iomem *reg_fas = base + EESOX_FAS216_OFFSET;
 	const void __iomem *reg_dmastat = base + EESOX_DMASTAT;
-	const void __iomem *reg_dmadata = base + EESOX_DMADATA;
+	void __iomem *reg_dmadata = base + EESOX_DMADATA;
 
 	do {
 		unsigned int status;