uboot-imx

sunxi: Add a bunch of missing compatible strings to sunxi_gpio.c

The kernel has different compatible strings for the pio block
because the pin-muxing is different on all the different SoCs,
but sunxi_gpio.c only support the basic gpio functionality, which
is identical everywhere. Add the missing compatible strings for
various SoC models.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>