ASoC: spear: spdif_out: Staticize unexported function
ASoC: spear: spdif_out: Staticize unexported function

The spdif_soc_dai_probe function is only used in spdif_out.c, so make it static.

Signed-off-by: Lars-Peter Clausen <3318dc5ce3e4fb7c28a0b841b6801c884e1d0896@metafoo.de>
Acked-by: Rajeev Kumar <2803853fd0818faa1eb216d52dad52a1d2cf14a2@st.com>
Signed-off-by: Mark Brown <b51b9a92386687a9ac927cebfa0f978adeb8cea5@opensource.wolfsonmicro.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs