setupapi: Declare some functions static

[Andrew Talbot]

Changelog:
    setupapi: Declare some functions static.

diff -urN a/dlls/setupapi/setupx_main.c b/dlls/setupapi/setupx_main.c
--- a/dlls/setupapi/setupx_main.c	2006-10-20 18:08:05.000000000 +0100
+++ b/dlls/setupapi/setupx_main.c	2007-01-27 17:34:52.000000000 +0000
@@ -280,7 +280,7 @@
 
 static BOOL std_LDDs_done = FALSE;
 
-void SETUPX_CreateStandardLDDs(void)
+static void SETUPX_CreateStandardLDDs(void)
 {
     HKEY hKey = 0;
     WORD n;
@@ -350,7 +350,7 @@
  * RETURN
  *   ERR_VCP_LDDINVALID if ldid < LDID_ASSIGN_START.
  */
-RETERR16 SETUPX_DelLdd(LOGDISKID16 ldid)
+static RETERR16 SETUPX_DelLdd(LOGDISKID16 ldid)
 {
     LDD_LIST *pCurr, *pPrev = NULL;