FIX COMPILATION WARNING

FIX COMPILATION WARNING

BZ: 15908

switch_mid.c: In function 'headset_print_state':
switch_mid.c:99: warning: control reaches end of non-void function
switch_mid.c: In function 'headset_print_name':
switch_mid.c:73: warning: control reaches end of non-void function

Change-Id: I35b34c6b4d9f4c05ed6190df5912b046bc5d5e6f
Signed-off-by: Fei Yang <fei.yang@intel.com>
Reviewed-on: http://android.intel.com:8080/33261
Reviewed-by: Kuppuswamy, Sathyanarayanan <sathyanarayanan.kuppuswamy@intel.com>
Reviewed-by: Deng, BingX <bingx.deng@intel.com>
Reviewed-by: Gross, Mark <mark.gross@intel.com>
Tested-by: Ng, Cheon-woei <cheon-woei.ng@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>