ocxl: do not use C++ style comments in uapi header

Linux kernel tolerates C++ style comments these days. Actually, the
SPDX License tags for .c files start with //.

On the other hand, uapi headers are written in more strict C, where
the C++ comment style is forbidden.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Frederic Barrat <fbarrat@linux.ibm.com>
Acked-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

include/uapi/misc/ocxl.h

@@ -33,23 +33,23 @@ struct ocxl_ioctl_attach {
 };
 
 struct ocxl_ioctl_metadata {
- __u16 version; // struct version, always backwards compatible
+ __u16 version; /* struct version, always backwards compatible */
 
- // Version 0 fields
+ /* Version 0 fields */
  __u8 afu_version_major;
  __u8 afu_version_minor;
- __u32 pasid; // PASID assigned to the current context
+ __u32 pasid; /* PASID assigned to the current context */
 
- __u64 pp_mmio_size; // Per PASID MMIO size
+ __u64 pp_mmio_size; /* Per PASID MMIO size */
  __u64 global_mmio_size;
 
- // End version 0 fields
+ /* End version 0 fields */
 
- __u64 reserved[13]; // Total of 16*u64
+ __u64 reserved[13]; /* Total of 16*u64 */
 };
 
 struct ocxl_ioctl_p9_wait {
- __u16 thread_id; // The thread ID required to wake this thread
+ __u16 thread_id; /* The thread ID required to wake this thread */
  __u16 reserved1;
  __u32 reserved2;
  __u64 reserved3[3];