tests: Add run-addrcfi.sh test for libdw cfi dwarf_frame_* functions.

tests: Add run-addrcfi.sh test for libdw cfi dwarf_frame_* functions.

We require architecture backends to implement the ebl abi_cfi hook
to provide the ABI's default CFI program as used by the libdw dwarf cfi
functions. There is the addrcfi test program that prints the return
address, cfa location expression and register states as returned by
various dwarf_cfi_* and dwarf_frame functions. But that has to be run
by hand. The new run-addrcfi.sh tests hooks addrcfi up to some existing
architecture specific test files and known addresses to more easily
(and automaticly) check that the default CFI program is implemented
correctly and to test the libdw cfi frame info functionality.

Only i386 and x86_64 are tested for now since other backends don't have
the abi_cfi hook yet.

Signed-off-by: Mark Wielaard <mjw@redhat.com>