GPS CS OS return chaotic data

[marekpow]

• [ ] The issue is present in the latest release.
• [ ] I have searched the issues of this repository and believe that this is not a duplicate.

What happened?

GPS returns chaotic data. I used cat /dev/ttyAMA0 to catch data from GPS.

What did you expect?

My gateway position should be displayed on the gateway bridge map.

Steps to reproduce this issue

Steps:

1. Use RAK5146 on RPi 4

Could you share your log output?

The log doesn't show any errors about /dev/ttyAMA0

Your Environment

Component	Version
ChirpStack Gateway OS	v4.3.0