power/rk3288-power.h in include/dt-bindings is identical to the version
in dts/upstream, remove the copy from include/dt-bindings to only use
the version from dts/upstream.
No functional change to board DTs is intended with this removal.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>