dwz-testsuite-0.15-160000.2.2

- Add patch (backport from upstream trunk) [swo#32934]:
  * dwz-fix-double-free-in-compute-abbrevs.patch

- Add patch (backport from upstream trunk):
  * dwz-add-support-for-version-9-gdb-index.patch
  * dwz-make-dejagnu-logs-more-elaborate.patch
  * dwz-make-dejagnu-test-names-environment-insensitive.patch
  * dwz-testsuite-fix-finding-gdb-without-which.patch
- Drop patch:
  * dwz-remove-odr-struct-multifile.sh.patch

- Use %{SOURCE2} macro instead of hardcoding the source file name/path.
  This makes the spec file compatible with rpmbuild.

- Use %autosetup macro. Allows to eliminate the usage of deprecated
  PatchN.

- Make PGO training independent from number of build machine cores
  (boo#1040589)

- Update to 0.15 release:
  * Uses xxHash hashing algorithm. A 8% ~ 14% speedup.
  * Set endianity of multifile using -e, --multifile-endian.
  * Set pointer size of multifile using -p, --multifile-pointer-size
  * Process files in parallel using -j N --jobs N. The default is
    processors / 2.  Disabled when multifile is used.
  * Prints abbrev or DIE offset for Unknown DWARF error messages.
  * All testcases have been updated to work against the binutils 2.39.
- Remove upstreamed patches:
  * dwz-fix-another-reference-from-pu-to-cu-for-odr.patch
  * dwz-handle-reordered-dup-chains-in-create-import-tree.patch
  * dwz-testsuite-fix-pr27463.sh-on-riscv64.patch
  * dwz-use-grep-E-instead-of-egrep.patch
- Rebased patches:
  * dwz-remove-odr-struct-multifile.sh.patch
  * dwz-enable-odr-by-default.patch

- Add dwz-use-grep-E-instead-of-egrep.patch in order
  to fix build with latest grep package.

- Drop binutils-gold dependency for testsuite as binutils-gold
  is deprecated and will be removed in the future.

- Silent warnings for tramp3d compilation.

- Add dwz-remove-odr-struct-multifile.sh.patch that removes problematic
  testcase.