Now that scoop gpio's are converted to generic_gpio,
tosascoop_device and tosascoop_jc_device don't have
to be exported.

Also make tosa_gpio_* static
Signed-off-by: NDmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>