erts: Fix cerl to better handle multiple type arguments
erts: Fix cerl to better handle multiple type arguments

When `ERL_AFLAGS="-emu_type debug" cerl -debug` is called,
cerl incorrectly tried to run beam.debug.debug.smp which does
not exist. This commit fixes so that multiple debug type
indications are merged as they should be.

rlipscombe/otp,vinoski/otp,jj1bdx/otp,rlipscombe/otp,dumbbell/otp,mikpe/otp,jj1bdx/otp,dumbbell/otp,erlang/otp,jj1bdx/otp,dgud/otp,emacsmirror/erlang,bjorng/otp,mikpe/otp,mikpe/otp,potatosalad/otp,isvilen/otp,emacsmirror/erlang,mikpe/otp,erlang/otp,isvilen/otp,mikpe/otp,emacsmirror/erlang,bjorng/otp,erlang/otp,emacsmirror/erlang,g-andrade/otp,erlang/otp,potatosalad/otp,bjorng/otp,jj1bdx/otp,mikpe/otp,mikpe/otp,bjorng/otp,vinoski/otp,rlipscombe/otp,isvilen/otp,isvilen/otp,g-andrade/otp,isvilen/otp,emacsmirror/erlang,dumbbell/otp,mikpe/otp,g-andrade/otp,erlang/otp,isvilen/otp,dumbbell/otp,jj1bdx/otp,potatosalad/otp,dumbbell/otp,vinoski/otp,dumbbell/otp,isvilen/otp,bjorng/otp,jj1bdx/otp,isvilen/otp,erlang/otp,rlipscombe/otp,dgud/otp,dgud/otp,jj1bdx/otp,vinoski/otp,vinoski/otp,erlang/otp,vinoski/otp,dumbbell/otp,isvilen/otp,emacsmirror/erlang,g-andrade/otp,potatosalad/otp,bjorng/otp,mikpe/otp,erlang/otp,g-andrade/otp,potatosalad/otp,vinoski/otp,potatosalad/otp,rlipscombe/otp,dumbbell/otp,potatosalad/otp,dgud/otp,vinoski/otp,potatosalad/otp,rlipscombe/otp,g-andrade/otp,jj1bdx/otp,bjorng/otp,g-andrade/otp,vinoski/otp,dgud/otp,rlipscombe/otp,vinoski/otp,isvilen/otp,g-andrade/otp,g-andrade/otp,emacsmirror/erlang,dumbbell/otp,jj1bdx/otp,mikpe/otp,g-andrade/otp,bjorng/otp,potatosalad/otp,emacsmirror/erlang,dumbbell/otp,erlang/otp,bjorng/otp,bjorng/otp,potatosalad/otp,jj1bdx/otp,dgud/otp,dgud/otp,dgud/otp,rlipscombe/otp,emacsmirror/erlang,rlipscombe/otp,dgud/otp,dgud/otp,rlipscombe/otp,erlang/otp,emacsmirror/erlang