that we had another case of a missing-device-below-chip in a devicetree made me write a patch for `sconfig` . Now that it's checking for the issue, that uncovered a few (31) more cases  that need to be fixed before upstream can benefit from the patch. Please help to fix the devicetrees.
Note, `sconfig` currently doesn't print the file name of override trees, e.g. when it says
SCONFIG mainboard/.../devicetree.cb line 10: end: syntax error
that might as well refer to line 10 in an override tree.
 https://review.coreboot.org/c/coreboot/+/51119  https://qa.coreboot.org/job/coreboot-gerrit/164572/
Failing boards: board.AMD_BILBY board.AMD_CEREME board.AMD_MANDOLIN board.GETAC_P470 board.GOOGLE_BRYA0 board.GOOGLE_FALCO board.GOOGLE_PEPPY board.GOOGLE_WOLF board.KONTRON_BSL6 board.LENOVO_R500 board.LENOVO_T430S board.LENOVO_T431S board.LENOVO_T520 board.LENOVO_T530 board.LENOVO_W530 board.LENOVO_X1 board.LENOVO_X220 board.LENOVO_X220I board.LENOVO_X220_MRC_BIN board.LENOVO_X220_OPTION_TABLE_DEBUG_TPM_EXTENDED_CBFS board.LENOVO_X230 board.LENOVO_X230S board.LENOVO_X230T board.LENOVO_X301 board.LENOVO_X60 board.RODA_RK886EX board.SIEMENS_BOXER26