TPM code updater

This commit introduces a TPM code updater that currently supports
reading the firmware version for both Infineon and Nuvoton TPM 2.0.
Support for firmware updates will be introduced

TPM code updater

This commit introduces a TPM code updater that currently supports
reading the firmware version for both Infineon and Nuvoton TPM 2.0.
Support for firmware updates will be introduced in a future patch.

The updater's configuration are managed by the EM [1].
[1] https://gerrit.openbmc.org/c/openbmc/entity-manager/+/82416

Tested on Yosemite5 with the following steps:

1. Display the fw inventory:
```
curl --silent $creds https://$bmc/redfish/v1/UpdateService/FirmwareInventory
{
"@odata.id": "/redfish/v1/UpdateService/FirmwareInventory",
"@odata.type": "#SoftwareInventoryCollection.SoftwareInventoryCollection",
"Members": [
{...},
{
"@odata.id": "/redfish/v1/UpdateService/FirmwareInventory/Yosemite5_TPM_4945"
},
{...}
],
"Members@odata.count": 4,
"Name": "Software Inventory Collection"
}
```

2. Query TPM version:
```
curl --silent $creds https://$bmc/redfish/v1/UpdateService/FirmwareInventory/Yosemite5_TPM_4945
{
"@odata.id": "/redfish/v1/UpdateService/FirmwareInventory/Yosemite5_TPM_4945",
"@odata.type": "#SoftwareInventory.v1_1_0.SoftwareInventory",
"Description": "Unknown image",
"Id": "Yosemite5_TPM_4945",
"Name": "Software Inventory",
"Status": {
"Health": "Warning",
"HealthRollup": "OK",
"State": "Disabled"
},
"Updateable": false,
"Version": "15.23"
}
```

Change-Id: I42568242356d55fe005ba1f41ddf8aaf9f682fc8
Signed-off-by: Kevin Tung <kevin.tung.openbmc@gmail.com>

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