habanalabs: cast int to u32 before printing it with %u

%u is used for unsigned so we need to cast the int variable to u32 to avoid
compiler warning.

Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Tomer Tayar <ttayar@habana.ai>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>