[third-party] Update rust-sgx-sdk and memchr (#195)

diff --git a/third_party/crates-sgx b/third_party/crates-sgx
index 18aeee0..8290224 160000
--- a/third_party/crates-sgx
+++ b/third_party/crates-sgx
@@ -1 +1 @@
-Subproject commit 18aeee01fff56f566bd0a8cdb773410847a7986d
+Subproject commit 8290224622b2a686048a920375cb46bf7c1ed69d
diff --git a/third_party/rust-sgx-sdk b/third_party/rust-sgx-sdk
index 4508450..13dd26a 160000
--- a/third_party/rust-sgx-sdk
+++ b/third_party/rust-sgx-sdk
@@ -1 +1 @@
-Subproject commit 4508450be2c6e169bc592b9d8c6ab3802eb2d557
+Subproject commit 13dd26a2af126b40129090abce642c109b283798