ARM: dts: rockchip: Use ABI name for recovery mode pin on veyron fievel/tiger

The recovery mode pin is currently named 'REC_MODE_L', which is
how the signal is called in the schematics. The Chrome OS ABI
requires the pin to be named 'RECOVERY_SW_L', which is also how
it is called on all other veyron devices. Rename the pin to match
the ABI.

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20200108092908.1.I3afd3535b65460e79f3976e9ebfa392a0dd75e01@changeid


Signed-off-by: Heiko Stuebner <heiko@sntech.de>