Fix warnings from static analysis tool. am: fc06f65914 am: ecfb24c6f4 am: 24df5f446c am: e8bba2c3cb

Original change: https://android-review.googlesource.com/c/platform/packages/apps/SecureElement/+/2532841

Change-Id: I67b31d7cf658084256556d76e1b11ee1ff0c65e3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>