Package rpm-build: Information

- E2K: Fix debuglink name, so it can be picked up by gdb from /usr/lib/debug.

Sync with sisyphus 4.0.4-alt164:
- ldd.in: fix trace_elf error diagnostics (ldv).
- rpmio: Workaround another liblzma memory allocation failure on armh.
- rpmio+pack: Update rpmio_flags 'T' with actual threads used.
- rpmio: Make xzdio errors more informative.
- rpmio: Fix lzopen_internal mode parsing when 'Tn' is used.
- Added fixup method: gnuconfig.
- Downgrade XZ->LZMA automatically for small payloads (by Alexey Tourbin).
- Added payload compression string diagnostics.
- Fixed exit status of "rpmbuild --version" command.
[skipped] debuginfo: strip --reloc-debug-sections for kernel modules. [not needed on e2k]
- rpmio: Lower memory limit on 32-bit arches for xz compression, again.
- brp-debuginfo: Add debug sources check.
- rpmio: Include rpmmacro.h to fix compilation warning.
- Add a wrapper for install in %install section to skip strip.
- rpmio: Lower memory limit on 32-bit systems for xz compression.
- rpmio: Make liblzma errors more verbose.
- Prevent exceeding 32 bit memory limitations with xz compression.
- Add support and enable multi-threaded xz payload compression.
- Add affinity aware %getncpus macro.
- platform: change %__nprocs to use %getncpus instead of nproc(1).

- Fix race condition during debuginfo processing using objcopy on identical
  file names.