[BOLT] Fix a warning

This patch fixes:

  bolt/lib/Profile/BoltAddressTranslation.cpp:380:37: error: operator
  '<<' has lower precedence than '+'; '+' will be evaluated first
  [-Werror,-Wshift-op-parentheses]

Author: kazutakahirata

bolt/lib/Profile/BoltAddressTranslation.cpp

@@ -377,7 +377,7 @@ void BoltAddressTranslation::parseMaps(std::vector<uint64_t> &HotFuncs,
       PrevAddress = OutputAddress;
       int64_t InputDelta = 0;
       if (J < EqualElems) {
-        InputOffset = (OutputOffset + ColdInputSkew << 1) | BEBitMask[J];
+        InputOffset = ((OutputOffset + ColdInputSkew) << 1) | BEBitMask[J];
       } else {
         InputDelta = DE.getSLEB128(&Offset, &Err);
         InputOffset += InputDelta;