Fix: #12084 deprecate old profiling flags

Change help message so it doesn't specify -auto-all.
Make old profiling flags deprecated as they are no longer
documented.
Update Makefile and documentation accordingly.
Update release notes for ghc 8.2

Test Plan:
./verify; `ghc --help` shouldn't specify the -auto-all
flag. Furthermore `ghc -fprof -auto-all` should emit a warning

Reviewed By: thomie, austin

Differential Revision: https://phabricator.haskell.org/D2257

GHC Trac Issues: #12084

Update submodule nofib

1 files changed, 0 insertions, 0 deletions

diff --git a/nofib b/nofib
-Subproject dfa9f9158943d2c441add8ccd4309c1b93fb347
+Subproject 35fc121fc8cc501ea2713c579a053be7ea65b16