Add std patch am: 8338d495f5 am: c0ae144f24

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/unicode-segmentation/+/1547935

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I3813239cf426c823ddf3f915a29b9789736d4b54
diff --git a/patches/std.diff b/patches/std.diff
new file mode 100644
index 0000000..4ed51cb
--- /dev/null
+++ b/patches/std.diff
@@ -0,0 +1,13 @@
+diff --git a/src/lib.rs b/src/lib.rs
+index f2f2962..83f3a22 100644
+--- a/src/lib.rs
++++ b/src/lib.rs
+@@ -55,7 +55,7 @@
+ 
+ #![no_std]
+ 
+-#[cfg(test)]
++// ANDROID: Always import std to enable building as a dylib
+ #[macro_use]
+ extern crate std;
+