Use YRL_ERLC_OPTS instead of ERL_COMPILER_OPTIONS

This is a follow-up to commit 93db480

`erlang.mk` supports the `YRL_ERLC_OPTS` variable to set `erlc`-specific
compiler options when processing `.yrl` and `.xrl` files. By using this
variable, it allows `make RMQ_ERLC_OPTS=` to disable the
`+deterministic` option. This allows using `c()` in the erl shell to
recompile modules on the fly when a cluster is running.

You can see that, when `make RMQ_ERLC_OPTS=` is run, these generated
files were produced with the `+deterministic` option, because their
`-file` directives use only basenames.

* `deps/rabbit/src/rabbit_amqp_sql_lexer.erl`
* `deps/rabbit/src/rabbit_amqp_sql_parser.erl`

```
-file("rabbit_amqp_sql_parser.yrl", 0).
-module(rabbit_amqp_sql_parser).
-file("rabbit_amqp_sql_parser.erl", 3).
-export([parse/1, parse_and_scan/1, format_error/1]).
-file("rabbit_amqp_sql_parser.yrl", 122).
```

This commit also ignores those two files, as they will always be
auto-generated.

Author: lukebakken

deps/rabbit/.gitignore

@@ -4,3 +4,6 @@
 
 [Bb]in/
 [Oo]bj/
+
+src/rabbit_amqp_sql_lexer.erl
+src/rabbit_amqp_sql_parser.erl

deps/rabbit/Makefile

@@ -363,7 +363,7 @@ RMQ_ERLC_OPTS += -DTRACE_SUPERVISOR2=true
 endif
 
 # https://www.erlang.org/doc/apps/parsetools/leex.html#file/2
-export ERL_COMPILER_OPTIONS := deterministic
+YRL_ERLC_OPTS ?= +deterministic
 
 # --------------------------------------------------------------------
 # Documentation.