Revert "Update HIDL EventFlagBits to have the correct values"

This reverts commit 3df20dea311497b1b9d9bb094fd7bbc0ee33f640.

Reason for revert: Droidmonitor triggered revert due to b/352430316. Will be verifying through ABTD before submission.

Change-Id: I1c61ec1e341cb30e25088eb1201525236ccf764c
diff --git a/tests/msgq/1.0/ITestMsgQ.hal b/tests/msgq/1.0/ITestMsgQ.hal
index 62bef0a..0cf9c7c 100644
--- a/tests/msgq/1.0/ITestMsgQ.hal
+++ b/tests/msgq/1.0/ITestMsgQ.hal
@@ -18,8 +18,8 @@
 
 interface ITestMsgQ {
     enum EventFlagBits : uint32_t {
-        FMQ_NOT_FULL = 1 << 0,
-        FMQ_NOT_EMPTY  = 1 << 1,
+        FMQ_NOT_EMPTY = 1 << 0,
+        FMQ_NOT_FULL  = 1 << 1,
     };
 
     /**