Few of the basic helper functions required for any
RISC-V CPU were added in edk2-platforms. To support
qemu virt, they need to be added in BaseLib.
Cc: Michael D Kinney <michael.d.kinney@intel.com> Cc: Liming Gao <gaoliming@byosoft.com.cn> Cc: Zhiguang Liu <zhiguang.liu@intel.com> Cc: Daniel Schaefer <git@danielschaefer.me> Signed-off-by: Sunil V L <sunilvl@ventanamicro.com> Acked-by: Abner Chang <abner.chang@amd.com> Reviewed-by: Andrei Warkentin <andrei.warkentin@intel.com> Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>