MIPS: Fix mjsunit/regress/regress-2653.

Insert proper padding after lazy deoptimization points. This change
makes sure, that patching does not overwrite the code after the
lazy deoptimization point.

TEST=mjsunit/regress/regress-2653

BUG=

Review URL: https://codereview.chromium.org/17587020

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@15304 ce2b1a6d-e550-0410-aec6-3dcde31c8c00