Staging: bcm: Remove typedef for stGPIOMultiInfo and call directly.

This patch removes typedef for stGPIOMultiInfo,
and changes the name of the struct to
bcm_gpio_multi_info. In addition, any calls
to typedefs GPIO_MULTI_INFO, or *PGPIO_MULTI_INFO
are changed to call the struct directly.

Signed-off-by: Kevin McKinney <klmckinney1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>