[ARM] Orion: nuke orion5x_{read,write}

Nuke the Orion-specific orion5x_{read,write} wrappers.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
diff --git a/arch/arm/mach-orion5x/db88f5281-setup.c b/arch/arm/mach-orion5x/db88f5281-setup.c
index 00ad36a..88405e7 100644
--- a/arch/arm/mach-orion5x/db88f5281-setup.c
+++ b/arch/arm/mach-orion5x/db88f5281-setup.c
@@ -330,7 +330,7 @@
 	orion5x_init();
 
 	orion5x_mpp_conf(db88f5281_mpp_modes);
-	orion5x_write(MPP_DEV_CTRL, 0);		/* DEV_D[31:16] */
+	writel(0, MPP_DEV_CTRL);		/* DEV_D[31:16] */
 
 	/*
 	 * Configure peripherals.