PP5002: Clock setup cleanup. * Switch to 80MHz when boosted like on the other PP targets. * Prepare sleep mode by adding CPUFREQ_SLEEP. This is already confirmed working, but a lot of functions in rockbox will probably hang because the microsecond timer isn't running in this mode.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14096 a1c6a512-1295-4272-9138-f99709370657
3 files changed