winmm: Declare a function static

[Andrew Talbot]

Changelog:
    winmm: Declare a function static.

diff -urN a/dlls/winmm/message16.c b/dlls/winmm/message16.c
--- a/dlls/winmm/message16.c	2006-11-20 11:57:13.000000000 +0000
+++ b/dlls/winmm/message16.c	2007-02-03 11:25:34.000000000 +0000
@@ -1793,9 +1793,9 @@
  *		MMDRV_LoadMMDrvFunc16
  *
  */
-unsigned   MMDRV_LoadMMDrvFunc16(LPCSTR drvName, LPWINE_DRIVER d, 
-                                 LPWINE_MM_DRIVER lpDrv)
-{        
+static  unsigned   MMDRV_LoadMMDrvFunc16(LPCSTR drvName, LPWINE_DRIVER d, 
+                                         LPWINE_MM_DRIVER lpDrv)
+{
     WINEMM_msgFunc16	func;
     unsigned            count = 0;
     char    		buffer[128];