Fix fw_path for ti50 to include common.

BUG=None
TEST=Cq-Include-Trybots: chromeos/cq:firmware-ti50-cq

Change-Id: Ia47445b78b1aaaff5cfc34ef5a61fcd2b55e9775
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/2650967
Tested-by: Andrew Luo <aluo@chromium.org>
Auto-Submit: Andrew Luo <aluo@chromium.org>
Reviewed-by: LaMont Jones <lamontjones@chromium.org>
Commit-Queue: LaMont Jones <lamontjones@chromium.org>
diff --git a/api/controller/firmware.py b/api/controller/firmware.py
index 298681c..fcb2b78 100644
--- a/api/controller/firmware.py
+++ b/api/controller/firmware.py
@@ -27,7 +27,7 @@
   elif fw_loc == firmware_pb2.PLATFORM_ZEPHYR:
     fw_path = 'src/platform/zephyr-chrome/'
   elif fw_loc == firmware_pb2.PLATFORM_TI50:
-    fw_path = 'src/platform/ti50/'
+    fw_path = 'src/platform/ti50/common/'
   else:
     cros_build_lib.Die(f'Unknown firmware location {fw_loc}!')