add ingenic-gpio package

[gtxaspec]

add ingenic-gpio package for controlling gpio pinmux

root@openipc-t31:~# ingenic-gpio  
Usage: ingenic-gpio <show|[GPIO_DEF [COMMAND VALUE]]>
GPIO diagnostic tool for Ingenic Tomahawk Series SoCs.

Commands:
  inl                        Read input level
  int                        Set interrupt
  msk                        Set mask
  pat0                       Set pattern 0 (data)
  pat1                       Set pattern 1 (direction)
  gpio_input                 Shortcut of `int 0', `msk 1', `pat1 1'
  gpio_output                Shortcut of `int 0', `msk 1', `pat1 0'
  read                       Shortcut of `inl'
  write                      Shortcut of `pat0'
  func                       Shortcut of `int 0', `msk 0', `pat1 <1>', `pat0 <0>'
  drive <value>              Set drive strength (0-3 for 2ma, 4ma, 8ma, 12ma)

Examples:
  ingenic-gpio show
  ingenic-gpio  pc23 gpio_input
  ingenic-gpio  pc23 read
  ingenic-gpio  pa00 gpio_output
  ingenic-gpio  pa00 write 1
  ingenic-gpio  pb27 func 0  # Set PB27 as 24MHz clock output on X1000

[flyrouter]

Thank you