target/riscv: Remove unused paramters in pmp_hart_has_privs_default()

target/riscv: Remove unused paramters in pmp_hart_has_privs_default()

The addr and size parameters in pmp_hart_has_privs_default() are unused.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230517091519.34439-7-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>