ASoC: Intel: mrfld - remove non static definition

sst_save_shim64() is defined as static in code but header is non static.
Since this is not used other than file where defined remove non static
definition

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
1 file changed