ARM: mx5: dynamically allocate mxc-ehci devices

Additionally make the usb related defines consistent with the other imx
SoCs.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
diff --git a/arch/arm/mach-mx5/Kconfig b/arch/arm/mach-mx5/Kconfig
index b4e7c58..2905110 100644
--- a/arch/arm/mach-mx5/Kconfig
+++ b/arch/arm/mach-mx5/Kconfig
@@ -68,6 +68,7 @@
 	select IMX_HAVE_PLATFORM_IMX2_WDT
 	select IMX_HAVE_PLATFORM_IMX_I2C
 	select IMX_HAVE_PLATFORM_IMX_UART
+	select IMX_HAVE_PLATFORM_MXC_EHCI
 	select IMX_HAVE_PLATFORM_SDHCI_ESDHC_IMX
 	select IMX_HAVE_PLATFORM_SPI_IMX
 	help
@@ -93,6 +94,7 @@
 	select SOC_IMX51
 	select IMX_HAVE_PLATFORM_IMX_I2C
 	select IMX_HAVE_PLATFORM_IMX_UART
+	select IMX_HAVE_PLATFORM_MXC_EHCI
 	select IMX_HAVE_PLATFORM_MXC_NAND
 	select IMX_HAVE_PLATFORM_SPI_IMX
 	help
@@ -120,9 +122,10 @@
 	bool "Support Eukrea CPUIMX51SD module"
 	select SOC_IMX51
 	select IMX_HAVE_PLATFORM_IMX_I2C
-	select IMX_HAVE_PLATFORM_SPI_IMX
 	select IMX_HAVE_PLATFORM_IMX_UART
+	select IMX_HAVE_PLATFORM_MXC_EHCI
 	select IMX_HAVE_PLATFORM_MXC_NAND
+	select IMX_HAVE_PLATFORM_SPI_IMX
 	help
 	  Include support for Eukrea CPUIMX51SD platform. This includes
 	  specific configurations for the module and its peripherals.
@@ -147,6 +150,7 @@
 	bool
 	select SOC_IMX51
 	select IMX_HAVE_PLATFORM_IMX_UART
+	select IMX_HAVE_PLATFORM_MXC_EHCI
 	select IMX_HAVE_PLATFORM_SDHCI_ESDHC_IMX
 	select IMX_HAVE_PLATFORM_SPI_IMX
 	select MXC_ULPI if USB_ULPI