mfd: davinci_voicecodec: Fix 'if defined' guard type in header

The include guard doesn't work as intended due to the transposition
typo DAVINCI -> DAVINIC.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

include/linux/mfd/davinci_voicecodec.h

@@ -21,7 +21,7 @@
  */
 
 #ifndef __LINUX_MFD_DAVINCI_VOICECODEC_H_
-#define __LINUX_MFD_DAVINIC_VOICECODEC_H_
+#define __LINUX_MFD_DAVINCI_VOICECODEC_H_
 
 #include <linux/kernel.h>
 #include <linux/platform_device.h>