habanalabs: use common fw_version read

Instead of using multiple ASIC specific copies of functions to read the
FW version use single common one that gets ASIC specific arguments.

Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>