Revert "ACPICA: Interpreter: fix memory leak by using existing buffer"

mainline inclusion
from mainline-v5.11
commit fe0af090
category: bugfix
bugzilla: 187402, https://gitee.com/openeuler/kernel/issues/I61CL6

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fe0af09074bfeb46a35357e67635eefe33cdfc49



--------------------------------

This reverts commit 32cf1a12.

The 'exisitng buffer' in this case is the firmware provided table, and
we should not modify that in place. This fixes a crash on arm64 with
initrd table overrides, in which case the DSDT is not mapped with
read/write permissions.

Reported-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

 Conflicts:
	drivers/acpi/acpica/nsrepair2.c
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Reviewed-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>