tree 54375f9356f81d6cf9395ce5aeaa793870f460b6
parent 8c5209d3bdd508f5082af111a650903e743e2043
author Adriana Kobylak <anoo@us.ibm.com> 1595083774 -0500
committer Adriana Kobylak <anoo@us.ibm.com> 1595434499 -0500

mmc: Enhance get running partition label function

The mount -l command may not show the filesystem label after a code
update since the this filesystem label is part of the image when it
gets built. Therefore determine the running partition via the device
then map it to the partition label (partlabel) which doesn't change.
Also return the label only if found, don't assume that because 'a'
didn't match that the device should be 'b'.

Tested: Verified the right label was found.

Change-Id: Id50223e21e9c6cc280f98f2b928d37a36de48cc9
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>