scripts: add DW_AT_abstract_origin check

According to below rule which's from DWARF5 sepc, if the
attribute can't be founded in given DIE, check more entry
associated by DW_AT_abstract_origin.

For the purposes of determining whether a debugging information
entry has a particular attribute (such as DW_AT_name), if
debugging information entry A has a DW_AT_specification or
DW_AT_abstract_origin attribute pointing to another debugging
information entry B, any attributes of B are considered to be
part of A.

Signed-off-by: Wentong Wu <wentong.wu@intel.com>