Add support for Embedded Constant Pools for PPC and Arm

src/arm/constants-arm.h

Index: src/arm/constants-arm.h
diff --git a/src/arm/constants-arm.h b/src/arm/constants-arm.h
index af68fb24e2c91280bb0bb5134d8563a8651776e8..7b8529c4bb7df324eab5c9b60fb4dcf7e61ea797 100644
--- a/src/arm/constants-arm.h
+++ b/src/arm/constants-arm.h
@@ -42,6 +42,11 @@ const int kNumVFPRegisters = kNumVFPSingleRegisters + kNumVFPDoubleRegisters;
 const int kPCRegister = 15;
 const int kNoRegister = -1;
 
+// Used in embedded constant pool builder - max reach in bits for
+// various load instructions (unsigned)
+const int kLdrMaxReachBits = 12;
+const int kVldrMaxReachBits = 10;
+
 // -----------------------------------------------------------------------------
 // Conditions.