This patch moves header files from plat-s5p to plat-samsung to
remove plat-s5p directory to make one plat-samsung directory
for Samsung SoCs.
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

EXYNOS4 has 2 phys for usb host and usb device. This patch supports to
control usb host phy of EXYNOS4.
Signed-off-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch adds usb ehci device definition for samsung s5p cpus.
Signed-off-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>