feat(mavlink): adopt the kaptan-native dialect

firmware/boards/geprc-f722-v2/src/board.rs

@@ -26,11 +26,11 @@ struct MavlinkConfig {
 struct TelemetryConfig {
     #[config(
         id = 103,
-        key = "telemetry.raw_imu_hz",
+        key = "telemetry.imu_hz",
         unit = "Hz",
         range(min = 1, max = 100)
     )]
-    raw_imu_hz: u8,
+    imu_hz: u8,
     #[config(
         id = 104,
         key = "telemetry.heartbeat_hz",
@@ -61,7 +61,7 @@ impl F7Board for GeprcF722V2 {
             log_level_filter: LevelFilter::Info,
         },
         telemetry: TelemetryConfig {
-            raw_imu_hz: 20,
+            imu_hz: 20,
             heartbeat_hz: 2,
         },
     };