Improve integer division on ARM in favor of power of 2 constant divisor
BUG=none
TEST=none

Review URL: https://chromiumcodereview.appspot.com/12052032
Patch from Rajeev R Krithivasan <rkrithiv@codeaurora.org>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@13819 ce2b1a6d-e550-0410-aec6-3dcde31c8c00