Replace boot image with bootclasspath fragment in sdk package

Bug: 177892522
Test: m nothing
Change-Id: I67589bccbde426de2caf513bd643d9484df86c1e
diff --git a/sdk/Android.bp b/sdk/Android.bp
index 7b034e6..09a7286 100644
--- a/sdk/Android.bp
+++ b/sdk/Android.bp
@@ -20,7 +20,7 @@
         "update.go",
     ],
     testSrcs: [
-        "boot_image_sdk_test.go",
+        "bootclasspath_fragment_sdk_test.go",
         "bp_test.go",
         "cc_sdk_test.go",
         "compat_config_sdk_test.go",