arcmsr: bugfix and support new adapters ARC12x4 series

This patch series addresses following issues with arcmsr drivers.

1. Bugfix for command timeout, abort, and ioctl error.

2. Add new feature of support MSI-X interrupt and system hibernation.

3. Support new adapters ARC12x4 series.

4. Simplify and unify code for readability and consistency.

These patched have been compile-tested and running-tested OK.

Regards,
Ching<[email protected]>