Update upstream

diff --git a/sources/ggml b/sources/ggml
index 760a62cfa9d80684f1d90cebfc175bc4cdec39f9..88b4cabf88bf457f5aaf13263f301072503be4c1 160000 (submodule)
--- a/sources/ggml
+++ b/sources/ggml
@@ -1 +1 @@
-Subproject commit 760a62cfa9d80684f1d90cebfc175bc4cdec39f9
+Subproject commit 88b4cabf88bf457f5aaf13263f301072503be4c1

diff --git a/sources/llama.cpp b/sources/llama.cpp
index 578afbc6cdacd87aabd28c8c93bc7ae1d358fcc0..f834584dae119d95f27e4d12084ab04d621d96c2 160000 (submodule)
--- a/sources/llama.cpp
+++ b/sources/llama.cpp
@@ -1 +1 @@
-Subproject commit 578afbc6cdacd87aabd28c8c93bc7ae1d358fcc0
+Subproject commit f834584dae119d95f27e4d12084ab04d621d96c2