radio: iris: Added IOCTL's for FM calibration

This patch adds support for FM Calibration IOCTL's
to perform the FM calibration during the bootup
and on every enable

Change-Id: If1c9e1d131d67df1434e86debd214b52379cad61
CRs-Fixed: 313588
Signed-off-by: Srinivasa Rao Uppala <uppalas@codeaurora.org>