tricore: remove useless cast

This patch is the result of coccinelle script
scripts/coccinelle/typecast.cocci

CC: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

hw/tricore/tricore_testboard.c

@@ -46,7 +46,7 @@ static void tricore_load_kernel(CPUTriCoreState *env)
     long kernel_size;
 
     kernel_size = load_elf(tricoretb_binfo.kernel_filename, NULL,
-                           NULL, (uint64_t *)&entry, NULL,
+                           NULL, &entry, NULL,
                            NULL, 0,
                            EM_TRICORE, 1, 0);
     if (kernel_size <= 0) {