Rename calibration nodes from orin2 to imu

This is because applications will attempt to look for the orin2
calibration under node imu.

Signed-off-by: Maxwell Henderson <mxwhenderson@gmail.com>
Change-Id: I388452d964208e185aecb253a175859990fc2de6
diff --git a/y2024/constants/calib_files/calibration_orin-7971-2-0_cam-24-01_2024-02-07_20-11-35.566609408.json b/y2024/constants/calib_files/calibration_orin-7971-2-0_cam-24-01_2024-02-07_20-11-35.566609408.json
index 4244ad5..c68e857 100755
--- a/y2024/constants/calib_files/calibration_orin-7971-2-0_cam-24-01_2024-02-07_20-11-35.566609408.json
+++ b/y2024/constants/calib_files/calibration_orin-7971-2-0_cam-24-01_2024-02-07_20-11-35.566609408.json
@@ -1,5 +1,5 @@
 {
- "node_name": "orin2",
+ "node_name": "imu",
  "team_number": 7971,
  "intrinsics": [
   646.870789,
diff --git a/y2024/constants/calib_files/calibration_orin-7971-2-1_cam-24-03_2024-02-07_20-40-34.928600992.json b/y2024/constants/calib_files/calibration_orin-7971-2-1_cam-24-03_2024-02-07_20-40-34.928600992.json
index f508b24..2a0aa00 100755
--- a/y2024/constants/calib_files/calibration_orin-7971-2-1_cam-24-03_2024-02-07_20-40-34.928600992.json
+++ b/y2024/constants/calib_files/calibration_orin-7971-2-1_cam-24-03_2024-02-07_20-40-34.928600992.json
@@ -1,5 +1,5 @@
 {
- "node_name": "orin2",
+ "node_name": "imu",
  "team_number": 7971,
  "intrinsics": [
   648.13446,