Fix compiler warning

* Compiling AK8975_FS/libsensors/sensors.cpp throws warning as follows
warning: missing initializer for member 'hw_module_t::dso' [-Wmissing-field-initializers]
 };
 ^
hardware/akm/AK8975_FS/libsensors/sensors.cpp:123:1: warning: missing initializer for member 'hw_module_t::reserved' [-Wmissing-field-initializers]

Fix by adding the dso and reserved member.

Change-Id: I704be3f933433d06db6222eb7d3bd173f13584e7
Signed-off-by: Nanik Tolaram <nanikjava@gmail.com>
diff --git a/AK8975_FS/libsensors/sensors.cpp b/AK8975_FS/libsensors/sensors.cpp
index 2713436..6e81316 100644
--- a/AK8975_FS/libsensors/sensors.cpp
+++ b/AK8975_FS/libsensors/sensors.cpp
@@ -118,6 +118,8 @@
                 .name = "AKM Sensor module",
                 .author = "Asahi Kasei Microdevices",
                 .methods = &sensors_module_methods,
+                .dso  = NULL,
+                .reserved = {0},
         },
         .get_sensors_list = sensors__get_sensors_list,
 };