tcg: Add support for vector absolute value

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
diff --git a/tcg/tcg.h b/tcg/tcg.h
index 2c7315d..0e01a70 100644
--- a/tcg/tcg.h
+++ b/tcg/tcg.h
@@ -176,6 +176,7 @@
     && !defined(TCG_TARGET_HAS_v128) \
     && !defined(TCG_TARGET_HAS_v256)
 #define TCG_TARGET_MAYBE_vec            0
+#define TCG_TARGET_HAS_abs_vec          0
 #define TCG_TARGET_HAS_neg_vec          0
 #define TCG_TARGET_HAS_not_vec          0
 #define TCG_TARGET_HAS_andc_vec         0