tree e59a7c80674d5e569507b4f0e317d1710408e654
parent 552e93e6ec8d72befcbe7ea59c3a57968f6603dc
author Patrick Williams <patrick@stwcx.xyz> 1635953737 -0500
committer Patrick Williams <patrick@stwcx.xyz> 1636018593 +0000

Partially revert "treewide: remove obmc-system-mgmt feature"

The obmc-system-mgmt feature is currently used in the image to trigger
inclusion of a virtual-provider which provides a number of packages many
systems need.  Partially revert the removal of this feature so that
the outcome is:

    1. The empty obmc-phosphor-sysd package is still removed.
    2. By default the 'obmc-system-mgmt' feature is included, unless
       specifically exempted.
    3. All EVB platforms remove the 'obmc-system-mgmt' feature since
       they have no system they are managing.

This partially reverts commit 060ad3ff7fcc30aff78a9e504efee9d8fa0d4526.

Tested:

  * Built `bletchley` and confirmed `packagegroup-fb-apps-system` and
    `entity-manager` are present.

```
entity-manager armv7ahf-vfpv4d16 0.1+git0+6bf41588ab-r0
packagegroup-fb-apps-system all 1.0-r1
```
  * Built `witherspoon` and confirmed `packagegroup-op-apps-system` and
    `pdbg` are present.

```
packagegroup-op-apps-system noarch 1.0
pdbg arm1176jzs 3.3
```

  * Ran `bitbake -p` on `evb-ast2600` to confirm the undefined
    `virtual-obmc-system-mgmt` is not being included in the image.

Change-Id: I8b7804d5101cc84a2c57473b3f85672bf7767c67
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>