net: Fix the devmem sock opts and msgs for parisc

The devmem socket options and socket control message definitions
introduced in the TCP devmem series[1] incorrectly continued the socket
definitions for arch/parisc.

The UAPI change seems safe as there are currently no drivers that
declare support for devmem TCP RX via PP_FLAG_ALLOW_UNREADABLE_NETMEM.
Hence, fixing this UAPI should be safe.

Fix the devmem socket options and socket control message definitions to
reflect the series followed by arch/parisc.

[1]
https://lore.kernel.org/lkml/[email protected]/

Fixes: 8f0b3cc ("tcp: RX path for devmem TCP")
Signed-off-by: Pranjal Shrivastava <[email protected]>
Reviewed-by: Willem de Bruijn <[email protected]>
Reviewed-by: Jason Xing <[email protected]>
Reviewed-by: Mina Almasry <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: pran005

arch/parisc/include/uapi/asm/socket.h

@@ -132,16 +132,16 @@
 #define SO_PASSPIDFD		0x404A
 #define SO_PEERPIDFD		0x404B
 
-#define SO_DEVMEM_LINEAR	78
-#define SCM_DEVMEM_LINEAR	SO_DEVMEM_LINEAR
-#define SO_DEVMEM_DMABUF	79
-#define SCM_DEVMEM_DMABUF	SO_DEVMEM_DMABUF
-#define SO_DEVMEM_DONTNEED	80
-
 #define SCM_TS_OPT_ID		0x404C
 
 #define SO_RCVPRIORITY		0x404D
 
+#define SO_DEVMEM_LINEAR	0x404E
+#define SCM_DEVMEM_LINEAR	SO_DEVMEM_LINEAR
+#define SO_DEVMEM_DMABUF	0x404F
+#define SCM_DEVMEM_DMABUF	SO_DEVMEM_DMABUF
+#define SO_DEVMEM_DONTNEED	0x4050
+
 #if !defined(__KERNEL__)
 
 #if __BITS_PER_LONG == 64