- Update to gcc-4_8-brach head (r209122).
* pulls official backport of ppc64le support
* drops gcc48-ibm-power8.diff, gcc48-ibm-power8-testsuite.diff,
gcc48-ibm-power8-other.diff, gcc48-pr59844.diff, gcc48-ibm-power8-fixes1.diff,
gcc48-ibm-power8-fixes2.diff, gcc48-ibm-power8-disable-sanitizer.diff,
gcc48-ibm-power8-testsuite-fixes1.diff and gcc48-ibm-power8-fixes3.diff
- tls-no-direct.diff, fix to only affect %ix86 similar to SLE11. [bnc#185782]
- refresh gcc41-ppc32-retaddr.patch
- Drop old compatibility provide and conflict of/with libgcc%{libgcc_s}

- gcc48-ibm-power8-bnc871635.diff, fix glibc math testsuite. [bnc#871635]
- gcc48-lto-plugin-short-readwrite.diff, backport lto-plugin changes
to work more reliably in virtualized environments.