Update patches for downstreamed AtomVM (#536)

See software-mansion-labs/FissionVM#183

Author: mat-hek

popcorn/elixir/patches/otp/erts/erlang.erl

@@ -114,7 +114,8 @@
     fun_info_mfa/1,
     phash2/1,
     phash2/2,
-    phash/2
+    phash/2,
+    md5/1
 ]).
 
 -export_type([
@@ -3201,3 +3202,5 @@ phash2(Term, N) ->
     (Hash rem N).
 
 phash(Term, N) -> phash2(Term, N) + 1.
+
+md5(Data) -> crypto:hash(md5, Data).

popcorn/elixir/patches/otp/stdlib/rand.erl

@@ -1,7 +1,5 @@
 -module(rand).
 
--export([splitmix64_next/1]).
-
 -compile({popcorn_patch_private, default_seed/0}).
 
 %% Patch reason: term_to_binary used in `erlang:phash2/2' patch
@@ -13,7 +11,3 @@ default_seed() ->
    erlang:system_time(microsecond),
    erlang:unique_integer()}.
 
-%% Patch reason: Replaced with native implementation that handles 64 bit rollover
-%% Handling in Erlang on AtomVM would require big integers support
-splitmix64_next(X) ->
-  avm_rand:splitmix64_next(X).