Modify a data structure into a union.

The new 6.0 kernel headers changed all variable length
structures from [0] to []. This causes a clang warning to
trigger, so rewrite the affected data structure using a
union to avoid having a variable sized array in the middle
of the structure.

Test: Builds.
Change-Id: I60c6d31a93566c4aa9f7501f39f88543ee76ce91

modules/sensors/dynamic_sensor/ConnectionDetector.cpp

@@ -194,9 +194,9 @@ void FileConnectionDetector::handleInotifyData(ssize_t len, const char *data) {
 }
 
 bool FileConnectionDetector::readInotifyData() {
-    struct {
+    union {
         struct inotify_event ev;
-        char padding[NAME_MAX + 1];
+        char raw[sizeof(inotify_event) + NAME_MAX + 1];
     } buffer;
 
     bool ret = true;