The virt addr should mask TARGET_PHYS_ADDR_SPACE_BITS to
get the phys addr, and this is used by loading kernel elf.

Signed-off-by: Tianrui Zhao <zhaotianrui@loongson.cn>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230327112313.3042829-1-zhaotianrui@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>