sync: one-time strip out _UAPI prefix from UAPI header guards

Normalize already synced UAPI headers. For all subsequent syncs this
will be done automatically by the sync script.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>

include/uapi/linux/bpf.h

@@ -5,8 +5,8 @@
  * modify it under the terms of version 2 of the GNU General Public
  * License as published by the Free Software Foundation.
  */
-#ifndef _UAPI__LINUX_BPF_H__
-#define _UAPI__LINUX_BPF_H__
+#ifndef __LINUX_BPF_H__
+#define __LINUX_BPF_H__
 
 #include <linux/types.h>
 #include <linux/bpf_common.h>
@@ -7575,4 +7575,4 @@ enum bpf_kfunc_flags {
 	BPF_F_PAD_ZEROS = (1ULL << 0),
 };
 
-#endif /* _UAPI__LINUX_BPF_H__ */
+#endif /* __LINUX_BPF_H__ */

include/uapi/linux/bpf_common.h

@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _UAPI__LINUX_BPF_COMMON_H__
-#define _UAPI__LINUX_BPF_COMMON_H__
+#ifndef __LINUX_BPF_COMMON_H__
+#define __LINUX_BPF_COMMON_H__
 
 /* Instruction classes */
 #define BPF_CLASS(code) ((code) & 0x07)
@@ -54,4 +54,4 @@
 #define BPF_MAXINSNS 4096
 #endif
 
-#endif /* _UAPI__LINUX_BPF_COMMON_H__ */
+#endif /* __LINUX_BPF_COMMON_H__ */

include/uapi/linux/btf.h

@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* Copyright (c) 2018 Facebook */
-#ifndef _UAPI__LINUX_BTF_H__
-#define _UAPI__LINUX_BTF_H__
+#ifndef __LINUX_BTF_H__
+#define __LINUX_BTF_H__
 
 #include <linux/types.h>
 
@@ -198,4 +198,4 @@ struct btf_enum64 {
 	__u32	val_hi32;
 };
 
-#endif /* _UAPI__LINUX_BTF_H__ */
+#endif /* __LINUX_BTF_H__ */

include/uapi/linux/netlink.h

@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _UAPI__LINUX_NETLINK_H
-#define _UAPI__LINUX_NETLINK_H
+#ifndef __LINUX_NETLINK_H
+#define __LINUX_NETLINK_H
 
 #include <linux/kernel.h>
 #include <linux/socket.h> /* for __kernel_sa_family_t */
@@ -249,4 +249,4 @@ struct nla_bitfield32 {
 	__u32 selector;
 };
 
-#endif /* _UAPI__LINUX_NETLINK_H */
+#endif /* __LINUX_NETLINK_H */