tree 9fe7cd03fb7e59287e9052888e1bcf7c47aeceb7
parent 78dcf8ff15917ce440ce6251a7a1a8d7b0870329
author Jayanth Othayoth <ojayanth@in.ibm.com> 1638858203 -0600
committer Jayanth Othayoth <ojayanth@gmail.com> 1638974878 +0000

openpower: pdata devtree file based attribute override support

attributes tool enabled to track the updates to attributes done
using "write" command. This features requires environment
variable PDATA_ATTR_OVERRIDE is defined and is pointing to a
file path that can be appended to.

This commits add support for setting shell context environment
variable to enable attribute override for devtree attributes.

Refer gerrit review for details

 https://gerrit.openbmc-project.xyz/c/openbmc/openpower-proc-control/
     +/49298

Signed-off-by: Jayanth Othayoth <ojayanth@in.ibm.com>
Change-Id: I744b86018440b6626307d447934152c978f6bd4b