util: Add i386 CPUINFO_ATOMIC_VMOVDQU

Add a bit to indicate when VMOVDQU is also atomic if aligned.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

host/include/i386/host/cpuinfo.h

@@ -25,6 +25,7 @@
 #define CPUINFO_AVX512DQ        (1u << 14)
 #define CPUINFO_AVX512VBMI2     (1u << 15)
 #define CPUINFO_ATOMIC_VMOVDQA  (1u << 16)
+#define CPUINFO_ATOMIC_VMOVDQU  (1u << 17)
 
 /* Initialized with a constructor. */
 extern unsigned cpuinfo;