dplayx: Assign to struct instead of using memcpy

[Andrew Talbot]

Changelog:
    dplayx: Assign to struct instead of using memcpy.

diff --git a/dlls/dplayx/dplay.c b/dlls/dplayx/dplay.c
index 04044a7..abb71b2 100644
--- a/dlls/dplayx/dplay.c
+++ b/dlls/dplayx/dplay.c
@@ -3619,8 +3619,7 @@ BOOL WINAPI DP_BuildSPCompoundAddr( LPGUID lpcSpGuid, LPVOID* lplpAddrBuf,
   HRESULT                  hr;
 
   dpCompoundAddress.dwDataSize = sizeof( GUID );
-  memcpy( &dpCompoundAddress.guidDataType, &DPAID_ServiceProvider,
-          sizeof( GUID ) ) ;
+  dpCompoundAddress.guidDataType = DPAID_ServiceProvider;
   dpCompoundAddress.lpData = lpcSpGuid;
 
   *lplpAddrBuf = NULL;