kfdtest: add PM4EventInterrupt test

Similar with SdmaEventInterrupt, verify event interrupt on pm4 queue.

Change-Id: I0e43f26fd0d965126985820704215d2ef5e52c1a
Signed-off-by: xinhui pan <xinhui.pan@amd.com>


[ROCm/ROCR-Runtime commit: 3e527bc7e8]

projects/rocr-runtime/tests/kfdtest/src/KFDTestUtil.hpp

@@ -33,6 +33,8 @@
 class BaseQueue;
 #define ARRAY_SIZE(_x) (sizeof(_x)/sizeof(_x[0]))
 
+uint64_t RoundToPowerOf2(uint64_t val);
+
 // @brief: waits until the value is written to the buffer or until time out if received through args
 bool WaitOnValue(const volatile unsigned int *buf, unsigned int value);