[osemu] Fixed potential deadlock in powervu emm handling
- When the key DB contains no powervu keys, the powervu_get_hexserials() retuns 0 and the mutex in emu_get_pvu_emm_filter() is not released. Fixes #36
[dreamOS] dirty fix cbc ebc context switch for compatible devices
supported devices DM900, DM920, DM520, DM525 and DM7080, DM820
thanks by @Gorgone