FSP/LED: Validate before creating LED nodes

If FSP messes up SLCA data then attention location code points
to some other location code and its possible that we may endup
in duplicate LED location code :-(

Better to continue with partial LED list than crashing OPAL because
of duplicate node in device tree.

Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
[stewart@linux.vnet.ibm.com: prlog(PR_WARNING) on duplicate found]
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
1 file changed