Cachegrind/Callgrind: allow for cache sizes other than only powers of two

The number of sets, ie. number of cache lines divided by associativity,
and the cache line size still have to be powers of two.
This change is needed for default cache parameters used on some Intel
Core 2 and Atom processors.

Includes cachegrind manual update and explicit tests with 24KB D1/3MB L2
Reverts addition of 6MB warning to {cachegrind,callgrind}/tests/filter_stderr

Backporting to VALGRIND_3_4_BRANCH needs r8912

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@9080 a5019735-40e9-0310-863c-91ae7b9d1cf9
19 files changed