Add imu reciever for the pi

Change-Id: I7f08b37ee0ecd321e4eb41d2a259addee12704fc
Signed-off-by: Ravago Jones <ravagojones@gmail.com>
diff --git a/aos/util/BUILD b/aos/util/BUILD
index 0314069..8df16e2 100644
--- a/aos/util/BUILD
+++ b/aos/util/BUILD
@@ -257,6 +257,15 @@
     ],
 )
 
+cc_library(
+    name = "crc32",
+    srcs = ["crc32.cc"],
+    hdrs = ["crc32.h"],
+    deps = [
+        "@com_google_absl//absl/types:span",
+    ],
+)
+
 py_library(
     name = "python_init",
     srcs = ["__init__.py"],