Recommended update for llvm12
LLVM and Clang 12 are now required for Chromium (boo#1192310, boo#1192429).
- Submitted by Aaron Puchert (aaronpuchert)
Fixed bugs
bnc#1192310
chromium general protection fault in libc upon start
bnc#1192429
Consider bringing newer LLVM to Leap 15.3