No hardware accelerated decoding on Raspberry Pi 4 Model B Rev 1.5 
<!-- BUG REPORTS THAT ARE NOT FILLED OUT COMPLETELY WILL BE CLOSED AUTOMATICALLY WITHOUT WARNING AND WILL NOT RECEIVE A RESPONSE. THE FORM IS HERE FOR A REASON. :). -->
<!-- Please ensure you read the documentation before creating a support request, especially the Troubleshooting page. -->
<!-- BUG REPORTS ABOUT BETA VERSIONS OF UNIFI / UBIQUITI FIRMWARE OR EARLY-ACCESS/BETA HARDWARE WILL BE CLOSED WITHOUT A RESPONSE. ALL BETA RELEASES FROM UBIQUITI ARE UNSUPPORTED -->

**Describe The Problem:**
Upon start of Homebridge I get the message "...: Unable to enable hardware accelerated decoding. Your video processor does not have support for the h264_mmal decoder. Using software decoding instead."

In config.txt the settings are 
dtoverlay=vc4-fkms-v3d
max_framebuffers=2

With config-tool I set GPU Memory to 128

**To Reproduce:**
Restart Raspi or Homebridge

**Logs:**
[8.6.2023, 09:14:15] [homebridge-unifi-protect] Dream Machine Pro [UDM-PRO] G3 Instant [G3 Instant]: Unable to enable hardware accelerated decoding. Your video processor does not have support for the h264_mmal decoder. Using software decoding instead.
[8.6.2023, 09:14:15] [homebridge-unifi-protect] Dream Machine Pro [UDM-PRO] Tuerklingel [G4 Doorbell]: Unable to enable hardware accelerated decoding. Your video processor does not have support for the h264_mmal decoder. Using software decoding instead.
[8.6.2023, 09:14:15] [homebridge-unifi-protect] Dream Machine Pro [UDM-PRO] Kamera Torhaus [G4 Bullet]: Unable to enable hardware accelerated decoding. Your video processor does not have support for the h264_mmal decoder. Using software decoding instead.
[8.6.2023, 09:14:15] [homebridge-unifi-protect] Dream Machine Pro [UDM-PRO] Kamera Innenhof [G4 Bullet]: Unable to enable hardware accelerated decoding. Your video processor does not have support for the h264_mmal decoder. Using software decoding instead.

**Homebridge Configuration:**
{
            "controllers": [
                {
                    "address": "192.168.30.1",
                    "password": "deleted",
                    "username": "deleted"
                }
            ],
            "options": [
                "Enable.Motion.SmartDetect",
                "Disable.Motion.SmartDetect.68D79AE590C7",
                "Disable.Doorbell.Messages.FromDoorbell",
                "Enable.Doorbell.Trigger.68D79ACF6023",
                "Disable.Video.Stream.High"
            ],
            "verboseFfmpeg": false,
            "_bridge": {
                "username": "0E:77:82:65:D5:24",
                "port": 36559
            },
            "platform": "UniFi Protect"
        }

**Screenshots:**
<!-- If applicable, add screenshots to help explain your problem. -->

**Environment:**

* **Homebridge Version:** 1.6.1
* **Node Version:** 18.16.0
* **Homebridge-UniFi-Protect Plugin Version:** 6.8.1
* **UniFi Protect Version:** 2.7.34
* **UniFi Protect Controller Type:** UDMP
* **UniFi Protect Controller Firmware Version:** 3.0.20
* **Apple Device and iOS / macOS / iPadOS / tvOS Version:** n/a
* **Operating System and OS Version:** Bullseye

<!-- Click the "Preview" tab before you submit to ensure the formatting is correct. -->
