misc: pci_endpoint_test: Drop initial kernel-doc marker

This beginning comment is not kernel-doc, so change the "/**" to a
normal "/*" comment to prevent a kernel-doc warning:

  drivers/misc/pci_endpoint_test.c:3: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Randy Dunlap <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Cc: Lorenzo Pieralisi <[email protected]>
Cc: Krzysztof Wilczyński <[email protected]>
Cc: Manivannan Sadhasivam <[email protected]>
Cc: Kishon Vijay Abraham I <[email protected]>
Cc: [email protected]
Cc: Arnd Bergmann <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>

Author: rddunlap

drivers/misc/pci_endpoint_test.c

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0-only
-/**
+/*
  * Host side test driver to test endpoint functionality
  *
  * Copyright (C) 2017 Texas Instruments