PP502x: Clock setup cleanup. 
* Prepare sleep mode by adding CPUFREQ_SLEEP, as was done previsouly with PP5002. This is already confirmed working on PP5020 (H10), PP5022 (mini2g) and PP5024 (Sansa), but a lot of functions in rockbox will probably hang because the microsecond timer isn't running in this mode.
* Simplify set_cpu_frequency() somewhat to make it more like the PP5002 version.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14106 a1c6a512-1295-4272-9138-f99709370657
2 files changed