Labeling issue

[Maksim Paimushkin]

Problem 1:

first DTS includes labels like
spiA: spi0: spi { ... };

second DTS includes labels like
spi0: spiA: spi { ... };

Then diff shows them like 2 different nodes

Problem 2

Additional labels for node

first DTS includes labels like
spi0: spi { prop = "1"; };

second DTS includes labels like
spiA: spi0: spi { prop = "2"; };

Then diff shows something strange and lose all labels which are related to node:

first DTS
spi0 { prop = "1"; };

second DTS
spiA { prop = "2"; };