mfplat: Add missing export of MFGetPluginControl to specfile.

[Sebastian Lackner]

This part was missing in b33d7b869011b0485ce8296004feeea901391a79.

---
 dlls/mfplat/mfplat.spec |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/mfplat/mfplat.spec b/dlls/mfplat/mfplat.spec
index 7100dfd..0b402b7 100644
--- a/dlls/mfplat/mfplat.spec
+++ b/dlls/mfplat/mfplat.spec
@@ -94,7 +94,7 @@
 @ stub MFGetNumericNameFromSockaddr
 @ stub MFGetPlaneSize
 @ stub MFGetPlatform
-@ stub MFGetPluginControl
+@ stdcall MFGetPluginControl(ptr)
 @ stub MFGetPrivateWorkqueues
 @ stub MFGetSockaddrFromNumericName
 @ stub MFGetStrideForBitmapInfoHeader
-- 
2.5.0