target/i386: Include missing 'exec/exec-all.h' header

The XRSTOR instruction ends calling tlb_flush(), declared
in "exec/exec-all.h".

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20231211212003.21686-13-philmd@linaro.org>
diff --git a/target/i386/tcg/fpu_helper.c b/target/i386/tcg/fpu_helper.c
index 4b965a5..ece22a3 100644
--- a/target/i386/tcg/fpu_helper.c
+++ b/target/i386/tcg/fpu_helper.c
@@ -21,6 +21,7 @@
 #include <math.h>
 #include "cpu.h"
 #include "tcg-cpu.h"
+#include "exec/exec-all.h"
 #include "exec/cpu_ldst.h"
 #include "exec/helper-proto.h"
 #include "fpu/softfloat.h"