fastboot: Add fastboot_test to TEST_MAPPING.

Bug: N/A
Test: fastboot_test on host
Change-Id: I1947b371ba6117e6eed811d1d6e1ed4019e0a0e9
diff --git a/fastboot/Android.bp b/fastboot/Android.bp
index a801900..47830ef 100644
--- a/fastboot/Android.bp
+++ b/fastboot/Android.bp
@@ -390,6 +390,8 @@
             enabled: false,
         },
     },
+
+    test_suites: ["general-tests"],
 }
 
 cc_test_host {