Update the FSL, GPIO binding documentation to add support
for GPIO controller found on Freescale's LS2080A platform.
Signed-off-by: Liu Gang <Gang.Liu@freescale.com>
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>