forked from Mirrors/opensbi

We add a simple hartmask library to create and maintain HART mask in different parts of OpenSBI sources. This new library is build as wrapper library on-top-of bitmap library. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>