erts: Introduce erlang:fun_info_mfa/1

Introduced for proc_lib:init_p/3
erts: Test erlang:fun_info_mfa/1
stdlib: Use erlang:fun_info_mfa/1 in proc_lib:init_p/3
erts: Update preloaded erlang.beam

Specs for erlang:fun_info_mfa/1
stdlib: Update dependencies to erts-6.2
Merge branch 'egil/proc_lib-optimizations/OTP-12060' into maint

* egil/proc_lib-optimizations/OTP-12060:
  stdlib: Update dependencies to erts-6.2
  erts: Update preloaded erlang.beam
  stdlib: Use erlang:fun_info_mfa/1 in proc_lib:init_p/3
  erts: Test erlang:fun_info_mfa/1
  erts: Introduce erlang:fun_info_mfa/1
Update release notes
Updated OTP version
Merge branch 'marcus/OTP-17.2.1/mergefix' into maint

* marcus/OTP-17.2.1/mergefix:
  Updated OTP version
  Update release notes
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