adb: set thread names (linux & mac)

Bug: 23423333
Change-Id: I0069f32ddbae2a10fb130064f721facf45b2cc09
diff --git a/adb/usb_osx.cpp b/adb/usb_osx.cpp
index 0ce85f3..d9e2fb2 100644
--- a/adb/usb_osx.cpp
+++ b/adb/usb_osx.cpp
@@ -403,6 +403,7 @@
 
 void* RunLoopThread(void* unused)
 {
+    adb_thread_setname("RunLoop");
     InitUSB();
 
     currentRunLoop = CFRunLoopGetCurrent();