duplicate generic bits/sem.h for each arch using it, in prep to change

arch/arm/bits/sem.h

@@ -0,0 +1,16 @@
+struct semid_ds {
+	struct ipc_perm sem_perm;
+	time_t sem_otime;
+	long __unused1;
+	time_t sem_ctime;
+	long __unused2;
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+	unsigned short sem_nsems;
+	char __sem_nsems_pad[sizeof(long)-sizeof(short)];
+#else
+	char __sem_nsems_pad[sizeof(long)-sizeof(short)];
+	unsigned short sem_nsems;
+#endif
+	long __unused3;
+	long __unused4;
+};

arch/i386/bits/sem.h

@@ -0,0 +1,16 @@
+struct semid_ds {
+	struct ipc_perm sem_perm;
+	time_t sem_otime;
+	long __unused1;
+	time_t sem_ctime;
+	long __unused2;
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+	unsigned short sem_nsems;
+	char __sem_nsems_pad[sizeof(long)-sizeof(short)];
+#else
+	char __sem_nsems_pad[sizeof(long)-sizeof(short)];
+	unsigned short sem_nsems;
+#endif
+	long __unused3;
+	long __unused4;
+};

arch/m68k/bits/sem.h

@@ -0,0 +1,16 @@
+struct semid_ds {
+	struct ipc_perm sem_perm;
+	time_t sem_otime;
+	long __unused1;
+	time_t sem_ctime;
+	long __unused2;
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+	unsigned short sem_nsems;
+	char __sem_nsems_pad[sizeof(long)-sizeof(short)];
+#else
+	char __sem_nsems_pad[sizeof(long)-sizeof(short)];
+	unsigned short sem_nsems;
+#endif
+	long __unused3;
+	long __unused4;
+};

arch/microblaze/bits/sem.h

@@ -0,0 +1,16 @@
+struct semid_ds {
+	struct ipc_perm sem_perm;
+	time_t sem_otime;
+	long __unused1;
+	time_t sem_ctime;
+	long __unused2;
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+	unsigned short sem_nsems;
+	char __sem_nsems_pad[sizeof(long)-sizeof(short)];
+#else
+	char __sem_nsems_pad[sizeof(long)-sizeof(short)];
+	unsigned short sem_nsems;
+#endif
+	long __unused3;
+	long __unused4;
+};

arch/or1k/bits/sem.h

@@ -0,0 +1,16 @@
+struct semid_ds {
+	struct ipc_perm sem_perm;
+	time_t sem_otime;
+	long __unused1;
+	time_t sem_ctime;
+	long __unused2;
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+	unsigned short sem_nsems;
+	char __sem_nsems_pad[sizeof(long)-sizeof(short)];
+#else
+	char __sem_nsems_pad[sizeof(long)-sizeof(short)];
+	unsigned short sem_nsems;
+#endif
+	long __unused3;
+	long __unused4;
+};

arch/sh/bits/sem.h

@@ -0,0 +1,16 @@
+struct semid_ds {
+	struct ipc_perm sem_perm;
+	time_t sem_otime;
+	long __unused1;
+	time_t sem_ctime;
+	long __unused2;
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+	unsigned short sem_nsems;
+	char __sem_nsems_pad[sizeof(long)-sizeof(short)];
+#else
+	char __sem_nsems_pad[sizeof(long)-sizeof(short)];
+	unsigned short sem_nsems;
+#endif
+	long __unused3;
+	long __unused4;
+};

arch/x86_64/bits/sem.h

@@ -0,0 +1,16 @@
+struct semid_ds {
+	struct ipc_perm sem_perm;
+	time_t sem_otime;
+	long __unused1;
+	time_t sem_ctime;
+	long __unused2;
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+	unsigned short sem_nsems;
+	char __sem_nsems_pad[sizeof(long)-sizeof(short)];
+#else
+	char __sem_nsems_pad[sizeof(long)-sizeof(short)];
+	unsigned short sem_nsems;
+#endif
+	long __unused3;
+	long __unused4;
+};