{ARM} Implement usage of generic division-by-const optimization

This utilizes the code commited in r27904 to convert a division by const
into a 32x32->64 bit multiplication for ARM.

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@27929 3ad0048d-3df7-0310-abae-a5850022a9f2