* add requirement to use only types T for spin lock, where the behavior Send is specified
* remove obsolete implementation of a irqsave refcell
* replace DoubleLinkedList by LinkedList of the alloc library
* using of the core collection library to handle memory and tasks
* the vector of PCI adapters aren't longer protected by a lock because these adapter are initialized at boot time. Afterwards, we have only read-access.
* Freelist: add check if a reunion with the previous slot is possible

- only necessary in test environments

- naked functions does currently not work (rust-lang/rust#75922)
- we replaced naked functions by assembly code
- using global_asm to include the assembly code

- the logical address space is completly separate from the physical
- consequently, different names are used

This reverts commit bcc35834529f2c8321ac5d381000f28ba4d6d5a5.

- define period to check, if the driver should still use the polling mode

- if yes, the drive will disable the polling mode

- avoids unnecessry interrupts