The FSA9480 is a USB port accessory detector and switch.  This patch adds
support the FSA9480 USB Switch.

[akpm@linux-foundation.org: make a couple of things static]
Signed-off-by: NDonggeun Kim <dg77.kim@samsung.com>
Signed-off-by: NMinkyu Kang <mk7.kang@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>