Support for FRU name from entity manager config

Get the FRU name as published on dbus by entity manager config
if the entity manager fru decorator has a name specified.
This takes care of existing approach of picking names
from board/product name with following config, as well as
option to specify custom names.
```
    "xyz.openbmc_project.Inventory.Decorator.FruDevice": {
        "Bus": "$bus",
        "Address": "$address",
        "Name": "$PRODUCT_PRODUCT_NAME"
    },
```

Change-Id: I5c772721f343e1a87d7a32bd149402aaa26e23e2
Signed-off-by: Shakeeb Pasha <shakeebbk@gmail.com>
1 file changed