Fixed issue found by winapi_check.

dlls/advapi32/crypt.c

diff --git a/dlls/advapi32/crypt.c b/dlls/advapi32/crypt.c
index 6f6b854..7df07ec 100644
--- a/dlls/advapi32/crypt.c
+++ b/dlls/advapi32/crypt.c
@@ -380,7 +380,7 @@
 }
 
 /******************************************************************************
- * CryptSetProviderEx (ADVAPI32.@)
+ * CryptSetProviderExA (ADVAPI32.@)
  */
 BOOL WINAPI CryptSetProviderExA (LPCSTR pszProvName, DWORD dwProvType, DWORD *pdwReserved, DWORD dwFlags)
 {