Update upstream

diff --git a/sources/ggml b/sources/ggml
index 88b4cabf88bf457f5aaf13263f301072503be4c1..21a71c0a0c1493252a25742052923d601c44f3c6 160000 (submodule)
--- a/sources/ggml
+++ b/sources/ggml
@@ -1 +1 @@
-Subproject commit 88b4cabf88bf457f5aaf13263f301072503be4c1
+Subproject commit 21a71c0a0c1493252a25742052923d601c44f3c6

diff --git a/sources/llama.cpp b/sources/llama.cpp
index f834584dae119d95f27e4d12084ab04d621d96c2..0ddcb3c2f73b61aa4e34e6b3a309de5bf6566862 160000 (submodule)
--- a/sources/llama.cpp
+++ b/sources/llama.cpp
@@ -1 +1 @@
-Subproject commit f834584dae119d95f27e4d12084ab04d621d96c2
+Subproject commit 0ddcb3c2f73b61aa4e34e6b3a309de5bf6566862