linux-3.6: fix portability of some includes files in tools/ used on the host

lede-commit: 6040b1d29ab1f047c5e49b748abcb6a3196add28
Signed-off-by: Felix Fietkau <nbd@nbd.name>

tools/include/tools/be_byteshift.h

 #ifndef _TOOLS_BE_BYTESHIFT_H
 #define _TOOLS_BE_BYTESHIFT_H
 
+#ifndef __linux__
+#include "linux_types.h"
+#endif
+
 #include <stdint.h>
 
 static inline uint16_t __get_unaligned_be16(const uint8_t *p)

tools/include/tools/le_byteshift.h

 #ifndef _TOOLS_LE_BYTESHIFT_H
 #define _TOOLS_LE_BYTESHIFT_H
 
+#ifndef __linux__
+#include "linux_types.h"
+#endif
+
 #include <stdint.h>
 
 static inline uint16_t __get_unaligned_le16(const uint8_t *p)

tools/include/tools/linux_types.h

+#ifndef __LINUX_TYPES_H
+#define __LINUX_TYPES_H
+
+#include <stdint.h>
+
+typedef uint8_t __u8;
+typedef uint8_t __be8;
+typedef uint8_t __le8;
+
+typedef uint16_t __u16;
+typedef uint16_t __be16;
+typedef uint16_t __le16;
+
+typedef uint32_t __u32;
+typedef uint32_t __be32;
+typedef uint32_t __le32;
+
+typedef uint64_t __u64;
+typedef uint64_t __be64;
+typedef uint64_t __le64;
+
+#endif