opdreport: add host preserved partitions to BMC dump

This change is picked from
https://gerrit.openbmc.org/c/openbmc/phosphor-debug-collector/+/52594

HBEL (Hostboot error logs)
HBD_RW (Hostboot

opdreport: add host preserved partitions to BMC dump

This change is picked from
https://gerrit.openbmc.org/c/openbmc/phosphor-debug-collector/+/52594

HBEL (Hostboot error logs)
HBD_RW (Hostboot preserved attributes)
EECACHE (Hostboot VPD cache)

Tested:
```
Wed Apr 13 08:13:31 UTC 2022 INFO: Copied HBEL /media/hostfw/running/HBEL
Wed Apr 13 08:13:31 UTC 2022 INFO: Copied HBD_RW /media/hostfw/running/HBD_RW
Wed Apr 13 08:13:31 UTC 2022 INFO: Copied EECACHE /media/hostfw/running/EECACHE

root@rain104bmc:/tmp/test/obmcdump_00000000_1649837600# ls -la HBEL
-rw-r----- 1 root root 147456 Apr 13 08:13 HBEL
root@rain104bmc:/tmp/test/obmcdump_00000000_1649837600# ls -lah HBEL
-rw-r----- 1 root root 144.0K Apr 13 08:13 HBEL
-rw-r----- 1 root root 2.0M Apr 13 08:13 HBD_RW
root@rain104bmc:/tmp/test/obmcdump_00000000_1649837600# ls -lah EECACHE
-rw-r----- 1 root root 2.8M Apr 13 08:13 EECACHE
```

Change-Id: Icaa065540e940f26a930e27db8d94fa4c4a19c88
Signed-off-by: Gopichand Paturi <gopichandpaturi@gmail.com>

show more ...