forked from Mirrors/opensbi

The menvcfg.PBMTE bit is read-only zero when Svpbmt extension is not available so we try to enable menvcfg.PBMTE bit irrespective whether Svpbmt is available or not. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Atish Patra <atishp@rivosinc.com> Reviewed-by: Xiang W <wxjstz@126.com>