habanalabs: return current power via INFO IOCTL

Add driver implementation for reading the current power from the device
CPU F/W.

Signed-off-by: Sagiv Ozeri <sozeri@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
5 files changed