arm64: dts: lx2160a: add more thermal zone support

There are 7 thermal zones in lx2160a soc. Add the
rest thermal zone node to enable them.
Also correct one of the values for tmu-calibration property.

Signed-off-by: Yuantian Tang <andy.tang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>