Bazel: skip aws-lc-sys memcmp check

MODULE.bazel

@@ -94,7 +94,12 @@ crate.annotation(
     crate = "aws-lc-sys",
     build_script_env = {
         "AWS_LC_SYS_CMAKE_BUILDER": "0",
+        "AWS_LC_SYS_SKIP_MEMCMP_CHECK": "1",
     },
+    patch_args = ["-p1"],
+    patches = [
+        "//patches:aws-lc-sys-skip-memcmp.patch",
+    ],
 )
 
 # Fix readme inclusions

patches/aws-lc-sys-skip-memcmp.patch

@@ -0,0 +1,14 @@
+diff --git a/builder/cc_builder.rs b/builder/cc_builder.rs
+index 6ed6915..a0910cc 100644
+--- a/builder/cc_builder.rs
++++ b/builder/cc_builder.rs
+@@ -701,7 +701,9 @@ impl CcBuilder {
+                 cc_build.define("AWS_LC_URANDOM_NEEDS_U32", Some("1"));
+             }
+         }
+-        self.memcmp_check();
++        if !env_var_to_bool("AWS_LC_SYS_SKIP_MEMCMP_CHECK").unwrap_or(false) {
++            self.memcmp_check();
++        }
+     }
+ }