verilog-auto-ignore-concat

verilog-auto-ignore-concat is a variable defined in `verilog-mode.el'.
Its value is

nil

• This variable is safe as a file local variable if its value
  satisfies the predicate `verilog-booleanp'.

Documentation:
Non-nil means ignore signals in {...} concatenations for AUTOWIRE etc.
This will exclude signals referenced as pin connections in {...}
from AUTOWIRE, AUTOOUTPUT and friends. This flag should be set
for backward compatibility only and not set in new designs; it
may be removed in future versions.

You can customize this variable.