tflite: Fix typos

BUG=b:305999697
TEST=cros_sdk emerge-rauru tensorflow

Change-Id: I6a7317db8c12a35a92ca3434a62d1017f1432729
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/tflite/+/5975113
Tested-by: Tommy Chiang <ototot@google.com>
Commit-Queue: Shik Chen <shik@chromium.org>
Auto-Submit: Tommy Chiang <ototot@google.com>
Commit-Queue: Tommy Chiang <ototot@google.com>
Reviewed-by: Shik Chen <shik@chromium.org>