flac-1.3.2-150000.3.14.1

- Fix Buffer Overflow vulnerability in function bitwriter_grow_
  (CVE-2020-22219, bsc#1214615):
  0001-fix-potential-memleak.patch
  0002-Add-and-use-_nofree-variants-of-safe_realloc-functio.patch
  0003-Leave-metadata-items-untouched-if-resize-function-fa.patch
  0004-Do-not-memset-when-allocation-fails.patch
  0005-Move-entropy-partitioning-result-allocation-so-it-ca.patch
  0006-Don-t-overwrite-bad-state-with-seek-error.patch

- Add flac-fix-pkgconfig.patch to fix includedir in the pkgconfig
  files.

- add xz buildrequires for old distros.

- Update to current git
  * patches deleted:
  - flac-1.2.1-asm.patch
  - flac-1.2.1-bitreader.patch
  - flac-gcc43-fixes.diff
  - flac-gcc47.patch
  - flac-leaks.patch
  - flac-no-xmms.diff
  - flac-visibility.patch
  - flac-printf-format-fix.diff
  All Upstreamed either by us or other distros.
- Add flac-openssl.patch, do crypto with openssl (not wanted upstream)
- Restore make check

- Don't ignore $(AM_CFLAGS).
- Remove ppc patch.

- Add flac-gcc47.patch: Replacing strcpy without 'lenght
  limitation' with strncpy, limited to 4 chars. This is safe, as we
  check the length already to be sure it is 4 chars, yet do not
  suffer from the problem that strcpy wants to add a '\0' char in
  plus to the target string.

- don't use fvisibility=hidden on ppc. As it can't find symbols
  afterwards