Add ISL69269 Voltage Regulator support
The configuration of the voltage regulator relies on the EM-Schema[1]
1: https://gerrit.openbmc.org/c/openbmc/entity-manager/+/79823
Tested:
```
<7> Requesting Image update with 10
<7> started asynchronous update with fd 10
<7> starting async update with FD: 11
<7> Harme_MB_VR_CPU0_VCORE0_5813: created dbus interfaces on path /xyz/openbmc_project/software/Harme_MB_VR_CPU0_VCORE0_5813
<7> starting the async update with memfd 11
<7> open fd 11
<7> file size: 7646
<7> parsing package header
<7> parsing package, pkg header size: 152
<7> Harme_MB_VR_CPU0_VCORE0_5813: set version 99A5A351
<7> device id from configuration: 0x49d29b00
<7> device revision from config: 0x7000000
<7> Production hex file format recognized
<7> Config ID: 0
<7> Config Production CRC: 0x99a5a351
<7> Device revision read from device: 0x6000100
<7> Production mode revision checks out
<6> Successfully updated VR Harme_MB_VR_CPU0_VCORE0
<7> Default implementation for device reset
<7> Harme_MB_VR_CPU0_VCORE0_5813: setting association definitions
<7> inventory item at path /xyz/openbmc_project/inventory/system/board/BMC_Storage_Module
<7> inventory item at path /xyz/openbmc_project/inventory/system/board/CB
<7> inventory item at path /xyz/openbmc_project/inventory/system/board/Harma_Fan_Board_0
<7> inventory item at path /xyz/openbmc_project/inventory/system/board/Harma_Fan_Board_1
<7> inventory item at path /xyz/openbmc_project/inventory/system/board/Harma_MB
<7> found associated inventory item for Harme_MB_VR_CPU0_VCORE0: /xyz/openbmc_project/inventory/system/board/Harma_MB
<7> Harme_MB_VR_CPU0_VCORE0_5813: creating 'running' association to /xyz/openbmc_project/inventory/system/board/Harma_MB
<7> [Software] enabling update of /xyz/openbmc_project/software/Harme_MB_VR_CPU0_VCORE0_5813 (adding the update interface)
<7> Successfully updated to software version Harme_MB_VR_CPU0_VCORE0_5813
```
Change-Id: Ia7d7b19066cd2a55748eeffacc18e7d6c78ca797
Signed-off-by: Christopher Meis <christopher.meis@9elements.com>
diff --git a/i2c-vr/vr.hpp b/i2c-vr/vr.hpp
index 670dc9f..688b37b 100644
--- a/i2c-vr/vr.hpp
+++ b/i2c-vr/vr.hpp
@@ -12,6 +12,7 @@
enum class VRType
{
XDPE1X2XX,
+ ISL69269,
};
class VoltageRegulator