forked from Mirrors/opensbi

We have now clear distinction between platform and hart features. Modify the boot print messages to print hart specific features in a string format. Signed-off-by: Atish Patra <atish.patra@wdc.com> Tested-by: Jonathan Balkind <jbalkind@cs.princeton.edu> Reviewed-by: Anup Patel <anup.patel@wdc.com>