Ignore embed-bitcode flag

Bug: 166331593
Test: regenerate .bp files in external/rust/crates
Change-Id: I3051a4d2d4e79b108f44bbed3fb0c51c86b81baf
diff --git a/scripts/cargo2android.py b/scripts/cargo2android.py
index b10a654..6af3cde 100755
--- a/scripts/cargo2android.py
+++ b/scripts/cargo2android.py
@@ -369,7 +369,9 @@
   def add_codegens_flag(self, flag):
     # ignore options not used in Android
     # 'prefer-dynamic' does not work with common flag -C lto
+    # 'embed-bitcode' is ignored; we might control LTO with other .bp flag
     if not (flag.startswith('debuginfo=') or
+            flag.startswith('embed-bitcode=') or
             flag.startswith('extra-filename=') or
             flag.startswith('incremental=') or
             flag.startswith('metadata=') or