[SYCL][ESIMD][EMU] Missing change in header file path (#5767)

- Header file path for esimd_emulator backend is updated for missing
change from PR5729

Author: dongkyunahn-intel

sycl/plugins/esimd_emulator/pi_esimd_emulator.hpp

@@ -171,4 +171,4 @@ struct _pi_kernel : _pi_object {
   _pi_kernel() {}
 };
 
-#include <sycl/ext/intel/experimental/esimd/emu/detail/esimd_emulator_device_interface.hpp>
+#include <sycl/ext/intel/esimd/emu/detail/esimd_emulator_device_interface.hpp>