linux-user: Fix target_statfs[64] on 64-bit hosts

Testing qemu-x86_64, I happen to run df and came across these mistakes
in the target_statfs/target_statfs64 structure definitions (reference:
linux/include/asm-x86/statfs.h).
Signed-off-by: NJan Kiszka <jan.kiszka@web.de>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4895 c046a42c-6fe2-441c-8c8c-71466251a162

linux-user/syscall_defs.h

@@ -1570,7 +1570,8 @@ struct target_statfs64 {
 	uint32_t	f_namelen;
 	uint32_t	f_spare[6];
 };
-#elif defined(TARGET_PPC64) && !defined(TARGET_ABI32)
+#elif (defined(TARGET_PPC64) || defined(TARGET_X86_64) || \
+       defined(TARGET_SPARC64)) && !defined(TARGET_ABI32)
 struct target_statfs {
 	abi_long f_type;
 	abi_long f_bsize;