Update ggml layer

diff --git a/sources/ggml b/sources/ggml
index d92321c0d151fe73a47d89738c7c3091ac904297..187542a5d0ec2250965dee7d1fc23f3d093db626 160000 (submodule)
--- a/sources/ggml
+++ b/sources/ggml
@@ -1 +1 @@
-Subproject commit d92321c0d151fe73a47d89738c7c3091ac904297
+Subproject commit 187542a5d0ec2250965dee7d1fc23f3d093db626