Enable NEON pabs for unsigned int types

Eigen/src/Core/arch/NEON/PacketMath.h

diff --git a/Eigen/src/Core/arch/NEON/PacketMath.h b/Eigen/src/Core/arch/NEON/PacketMath.h
index 08b2c21..8dd288b 100644
--- a/Eigen/src/Core/arch/NEON/PacketMath.h
+++ b/Eigen/src/Core/arch/NEON/PacketMath.h
@@ -320,7 +320,7 @@
     HasShift     = 1,
     HasMul       = 1,
     HasNegate    = 0,
-    HasAbs       = 0,
+    HasAbs       = 1,
     HasAbsDiff   = 1,
     HasArg       = 0,
     HasAbs2      = 1,
@@ -379,7 +379,7 @@
     HasShift     = 1,
     HasMul       = 1,
     HasNegate    = 0,
-    HasAbs       = 0,
+    HasAbs       = 1,
     HasArg       = 0,
     HasAbs2      = 1,
     HasAbsDiff   = 1,
@@ -441,7 +441,7 @@
     HasShift     = 1,
     HasMul       = 1,
     HasNegate    = 0,
-    HasAbs       = 0,
+    HasAbs       = 1,
     HasArg       = 0,
     HasAbs2      = 1,
     HasAbsDiff   = 1,