Recommended update for gnu-compilers-hpc

This update for gnu-compilers-hpc fixes the following issues:

- Added gcc9 flavors (jsc#SLE-8604 bsc#1160924)
This update was imported from the SUSE:SLE-15-SP1:Update update project.

Fixed bugs
bnc#1160924
[TRACKERBUG, HPC, gnu-compilers-hpc] jsc#SLE-8604 Update for gcc9
Selected Binaries
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