ARM: OMAP1: ams-delta: Drop board specific global GPIO numbers
As all users of the board specific GPIO pins have been converted from
legacy integer-based to descriptor-based interface, there is no longer
a need to maintain statically assigned GPIO pin numbers. Drop support
for that.
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Tony Lindgren <tony@atomide.com>