Change 'recive' to 'receive' in gen_server.erl

A small spelling correction merely; no functionality change.
Merge branch 'blt/gen_server-typo/OTP-11398' into maint

* blt/gen_server-typo/OTP-11398:
  Change 'recive' to 'receive' in gen_server.erl
Merge branch 'maint'