[MIPS] Fix webkit deserialization alignment problem.
[MIPS] Fix webkit deserialization alignment problem.

MIPS specific issue with alignment of doubles. Writing to the pickle
uses memcpy(), so there is no alignment problem. Reading double from
the pickle uses pointer cast to double pointer, which can be unaligned,
crashes on mips ldc1 instruction.

Change to use memcpy on read also, for mips.

paul99/clank,paul99/clank,paul99/clank,paul99/clank,paul99/clank,paul99/clank,paul99/clank,paul99/clank,paul99/clank,paul99/clank,paul99/clank