Create the +msidb debug channel for msi database code.

diff --git a/dlls/msi/create.c b/dlls/msi/create.c
index 2e98a2c..fb93c62 100644
--- a/dlls/msi/create.c
+++ b/dlls/msi/create.c
@@ -33,7 +33,7 @@
 
 #include "query.h"
 
-WINE_DEFAULT_DEBUG_CHANNEL(msi);
+WINE_DEFAULT_DEBUG_CHANNEL(msidb);
 
 
 /* below is the query interface to a table */