configs/solidrun_clearfog: bump kernel to 6.6.28

Adjust DTS_NAME to current kernel source tree location of DTs in
per-vendor directories.

Fixes:
https://gitlab.com/buildroot.org/buildroot/-/jobs/6665749909

Cc: Jan Kundrát <jan.kundrat@cesnet.cz>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
1 file changed