[FM] Fix typo of anntenna to antenna

    There are many typos of antenna (e.g. ANNTENNA, anntenna).

    The CL is to fix the typos.

    Bug: 18737759

    Review: https://partner-android-review.git.corp.google.com/#/c/188580



Signed-off-by: Benson Huang <benson.huang@mediatek.com>

Change-Id: Ic8454a4b9678d60a734a59af65d6bbefbca1411a