rename symbol: CONFIG_ORION5X -> CONFIG_ARCH_ORION5X

Have this symbol follow the pattern of all other such symbols.
This patch removes a TODO from the code.

Signed-off-by: Trevor Woerner <twoerner@gmail.com>
diff --git a/drivers/ata/mvsata_ide.c b/drivers/ata/mvsata_ide.c
index 3818123..9ac1655 100644
--- a/drivers/ata/mvsata_ide.c
+++ b/drivers/ata/mvsata_ide.c
@@ -8,7 +8,7 @@
 #include <common.h>
 #include <asm/io.h>
 
-#if defined(CONFIG_ORION5X)
+#if defined(CONFIG_ARCH_ORION5X)
 #include <asm/arch/orion5x.h>
 #elif defined(CONFIG_KIRKWOOD)
 #include <asm/arch/soc.h>
diff --git a/drivers/i2c/mvtwsi.c b/drivers/i2c/mvtwsi.c
index 382cf4b..77fe35a 100644
--- a/drivers/i2c/mvtwsi.c
+++ b/drivers/i2c/mvtwsi.c
@@ -25,7 +25,7 @@
  */
 
 #ifndef CONFIG_DM_I2C
-#if defined(CONFIG_ORION5X)
+#if defined(CONFIG_ARCH_ORION5X)
 #include <asm/arch/orion5x.h>
 #elif (defined(CONFIG_KIRKWOOD) || defined(CONFIG_ARCH_MVEBU))
 #include <asm/arch/soc.h>
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 38f2bd6..4d6716f 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -309,7 +309,7 @@
 
 config MVGBE
 	bool "Marvell Orion5x/Kirkwood network interface support"
-	depends on KIRKWOOD || ORION5X
+	depends on KIRKWOOD || ARCH_ORION5X
 	select PHYLIB if DM_ETH
 	help
 	  This driver supports the network interface units in the
diff --git a/drivers/net/mvgbe.c b/drivers/net/mvgbe.c
index 037e59e..b0b8d34 100644
--- a/drivers/net/mvgbe.c
+++ b/drivers/net/mvgbe.c
@@ -26,7 +26,7 @@
 
 #if defined(CONFIG_KIRKWOOD)
 #include <asm/arch/soc.h>
-#elif defined(CONFIG_ORION5X)
+#elif defined(CONFIG_ARCH_ORION5X)
 #include <asm/arch/orion5x.h>
 #endif
 
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 2f381dc..cc9646d 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -135,7 +135,7 @@
 
 config USB_EHCI_MARVELL
 	bool "Support for Marvell on-chip EHCI USB controller"
-	depends on ARCH_MVEBU || KIRKWOOD || ORION5X
+	depends on ARCH_MVEBU || KIRKWOOD || ARCH_ORION5X
 	default y
 	---help---
 	  Enables support for the on-chip EHCI controller on MVEBU SoCs.
diff --git a/drivers/usb/host/ehci-marvell.c b/drivers/usb/host/ehci-marvell.c
index 8efe6b6..3b10cdf 100644
--- a/drivers/usb/host/ehci-marvell.c
+++ b/drivers/usb/host/ehci-marvell.c
@@ -15,7 +15,7 @@
 
 #if defined(CONFIG_KIRKWOOD)
 #include <asm/arch/soc.h>
-#elif defined(CONFIG_ORION5X)
+#elif defined(CONFIG_ARCH_ORION5X)
 #include <asm/arch/orion5x.h>
 #endif