forked from Mirrors/opensbi

We add new sbi_nputs() which help us print a fixed number of characters from a physical memory location. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Atish Patra <atishp@rivosinc.com> Reviewed-by: Bin Meng <bmeng@tinylab.org> Reviewed-by: Xiang W <wxjstz@126.com>