arm64: dts: rockchip: Start cooling maps numbering from zero on ROCK 5B

The package cooling maps for the Radxa ROCK 5B were mistakenly named map1
and map2.  Their numbering should start from zero instead, because there are
no package cooling maps defined in the parent RK3588 SoC dtsi file, so let's
rename these cooling maps to map0 and map1.

Fixes: 4a152231 ("arm64: dts: rockchip: enable automatic fan control on Rock 5B")
Signed-off-by: Dragan Simic <dsimic@manjaro.org>
Link: https://lore.kernel.org/r/335ecd5841ab55f333e17bb391d0e1264fac257b.1726954592.git.dsimic@manjaro.org


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