ipmi-sel: Fix memory leak in error path
ipmi-sel: Fix memory leak in error path

Commit a5299ba2 dropped non-severe event from logging to BMC, but I forgot
to releaes the error log structure.

Fixes: a5299ba2 (IPMI: Only log events that needs attention)
Signed-off-by: Vasant Hegde <a6d753843573f7bfed5075c1e875b0be8007a0ab@linux.vnet.ibm.com>
Signed-off-by: Stewart Smith <ec31ab75ddf977353c8f660f92ea8b23f64aef25@linux.vnet.ibm.com>

mikey/skiboot,shenki/skiboot,shenki/skiboot,legoater/skiboot,qemu/skiboot,open-power/skiboot,legoater/skiboot,open-power/skiboot,open-power/skiboot,legoater/skiboot,qemu/skiboot,mikey/skiboot,stewart-ibm/skiboot,open-power/skiboot,shenki/skiboot,mikey/skiboot,qemu/skiboot,legoater/skiboot,stewart-ibm/skiboot,stewart-ibm/skiboot,shenki/skiboot,open-power/skiboot,shenki/skiboot,legoater/skiboot,qemu/skiboot,qemu/skiboot