Use DEFAULT_EXTERNAL_VENDOR_TIDY_CHECKS for vendor/google_devices

Many source files under vendor/google_devices
are old third party code with too many clang-tidy
misc-macro-parentheses warnings.

Test: build with WITH_TIDY=1
Change-Id: I79248af3ece9c7a4436b8cf5e6c25f224fd8201b
diff --git a/core/clang/tidy.mk b/core/clang/tidy.mk
index c1d485d..c156f31 100644
--- a/core/clang/tidy.mk
+++ b/core/clang/tidy.mk
@@ -51,6 +51,7 @@
   hardware/qcom:$(DEFAULT_EXTERNAL_VENDOR_TIDY_CHECKS) \
   vendor/:$(DEFAULT_EXTERNAL_VENDOR_TIDY_CHECKS) \
   vendor/google:$(DEFAULT_GLOBAL_TIDY_CHECKS) \
+  vendor/google_devices:$(DEFAULT_EXTERNAL_VENDOR_TIDY_CHECKS) \
 
 # Returns 2nd word of $(1) if $(2) has prefix of the 1st word of $(1).
 define find_default_local_tidy_check2