ASoC: cs42l52: Staticise non-exported symbols
ASoC: cs42l52: Staticise non-exported symbols

Makes sparse happy and avoids polluting the global namespace.

Signed-off-by: Mark Brown <b51b9a92386687a9ac927cebfa0f978adeb8cea5@opensource.wolfsonmicro.com>
Acked-by: Brian Austin <7ccdd955b4e26e3b1411a1457debd07a3e7a7eab@cirrus.com>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas