dts: fix 'grove,foo' compatibles by using 'seeed,grove-foo'

Rename:

- grove,light to seeed,grove-light
- grove,temperature to seeed,grove-temperature

The "grove" brand applies to a family of products by Seeed (sic):

https://www.seeedstudio.com/category/Grove-c-1003.html



Therefore we should use the existing vendor seeed.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>