VOXL2: HRT updates for synchronization with Qurt time (#22881)

- Added offset to Posix hrt time to account for synchronization with Qurt hrt time
- Added new Kconfig to configure synchronization of HRT timestamps on VOXL2
- Moved voxl2 libfc sensor library submodule from muorb module to boards directory
- Added check to make sure hrt_elapsed_time can never be negative

Tools/astyle/files_to_check_code_style.sh

@@ -30,5 +30,5 @@ exec find boards msg src platforms test \
     -path src/lib/cdrstream/cyclonedds -prune -o \
     -path src/lib/cdrstream/rosidl -prune -o \
     -path src/modules/zenoh/zenoh-pico -prune -o \
-    -path src/modules/muorb/apps/libfc-sensor-api -prune -o \
+    -path boards/modalai/voxl2/libfc-sensor-api -prune -o \
     -type f \( -name "*.c" -o -name "*.h" -o -name "*.cpp" -o -name "*.hpp" \) | grep $PATTERN