enable dbus-sdr in testing by default

Fix the build issues with dbus-sdr

Change-Id: If91de78de5f9ffeb8581b8ee5862363722103cac
Signed-off-by: Willy Tu <wltu@google.com>
diff --git a/meson.build b/meson.build
index c3eed2e..4889b97 100644
--- a/meson.build
+++ b/meson.build
@@ -260,7 +260,7 @@
 # Dynamic Sensor Stack
 subdir('dbus-sdr')
 
-if not get_option('dynamic-sensors').disabled()
+if not get_option('dynamic-sensors').disabled() or not get_option('tests').disabled()
   library(
     'dynamiccmds',
     dbus_sdr_src,