ARM: imx: move EHCI platform defines out of platform_data header

The platform_data header usb-ehci-mxc.h has a lot of stuff used by only
IMX platform code.  They shouldn't be really in this header but a IMX
platform local header.  Create ehci.h and move these stuff into it.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>

diff --cc arch/arm/mach-imx/ehci-imx25.c
Simple merge

diff --cc arch/arm/mach-imx/ehci-imx27.c
Simple merge

diff --cc arch/arm/mach-imx/ehci-imx31.c
Simple merge

diff --cc arch/arm/mach-imx/ehci-imx35.c
Simple merge

diff --cc arch/arm/mach-imx/ehci-imx5.c
Simple merge

diff --cc arch/arm/mach-imx/ehci.h
Simple merge

diff --cc arch/arm/mach-imx/mach-armadillo5x0.c
Simple merge

diff --cc arch/arm/mach-imx/mach-cpuimx27.c
Simple merge

diff --cc arch/arm/mach-imx/mach-cpuimx35.c
Simple merge

diff --cc arch/arm/mach-imx/mach-eukrea_cpuimx25.c
Simple merge

diff --cc arch/arm/mach-imx/mach-imx27_visstrim_m10.c
Simple merge

diff --cc arch/arm/mach-imx/mach-mx25_3ds.c
Simple merge

diff --cc arch/arm/mach-imx/mach-mx27_3ds.c
Simple merge

diff --cc arch/arm/mach-imx/mach-mx31_3ds.c
Simple merge

diff --cc arch/arm/mach-imx/mach-mx31lilly.c
Simple merge

diff --cc arch/arm/mach-imx/mach-mx31lite.c
Simple merge

diff --cc arch/arm/mach-imx/mach-mx31moboard.c
Simple merge

diff --cc arch/arm/mach-imx/mach-mx35_3ds.c
Simple merge

diff --cc arch/arm/mach-imx/mach-pca100.c
Simple merge

diff --cc arch/arm/mach-imx/mach-pcm037.c
Simple merge

diff --cc arch/arm/mach-imx/mach-pcm038.c
Simple merge

diff --cc arch/arm/mach-imx/mach-pcm043.c
Simple merge

diff --cc arch/arm/mach-imx/mach-vpr200.c
Simple merge

diff --cc arch/arm/mach-imx/mx31moboard-devboard.c
Simple merge

diff --cc arch/arm/mach-imx/mx31moboard-marxbot.c
Simple merge

diff --cc arch/arm/mach-imx/mx31moboard-smartbot.c
Simple merge

diff --cc include/linux/platform_data/usb-ehci-mxc.h
Simple merge