[BHND] ChipCommon probing is failed

[mizhka]

Summary

ChipCommon probing uses mapping table "chipc_devices". It calls bhnd_device_lookup, which iterate over mapping table with end condition:

entry->desc != NULL

So if mapping table contains row with description equals to NULL, it will stop processing of mapping. I.e. description is mandatory field and should be not NULL.

This patch corrects mapping table for ChipCommon.

Test Plan

Tested on today's head on ASUS boards.