kernel: ACPICA: check null return of ACPI_ALLOCATE_ZEROED() in acpi_db_convert_to_package()

In the Linux kernel, the following vulnerability has been resolved: ACPICA: check null return of ACPIALLOCATEZEROED in acpidbconverttopackage ACPICA commit 4d4547cf13cca820ff7e0f859ba83e1a610b9fd0 ACPIALLOCATEZEROED may fail, elements might be NULL and will cause NULL pointer dereference later...