fix windows build

after commit b97aa3fa
"Remove the unnecessary type definition: HPBYTE"

Change-Id: Ifd73ecb7e923ef38826d24c3d251be29eda472bf

vcl/win/source/gdi/salbmp.cxx

@@ -51,12 +51,20 @@
 
 // - Inlines -
 
-inline void ImplSetPixel4( const sal_uInt8* pScanline, long nX, const BYTE cIndex )
+inline void ImplSetPixel4( sal_uInt8* pScanline, long nX, const BYTE cIndex )
 {
     BYTE& rByte = pScanline[ nX >> 1 ];
 
-    ( nX & 1 ) ? ( rByte &= 0xf0, rByte |= ( cIndex & 0x0f ) ) :
-                 ( rByte &= 0x0f, rByte |= ( cIndex << 4 ) );
+    if ( nX & 1 )
+    {
+        rByte &= 0xf0;
+        rByte |= cIndex & 0x0f;
+    }
+    else
+    {
+        rByte &= 0x0f;
+        rByte |= cIndex << 4;
+    }
 }
 
 // Helper class to manage Gdiplus::Bitmap instances inside of