uClibc: add another missing backport patch

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 45102

toolchain/uClibc/patches-0.9.33.2/020-endian.h-add-some-handy-macros-to-be-used-in-syscall.patch

@@ -0,0 +1,28 @@
+From: "Peter S. Mazinger" <ps.m@gmx.net>
+Date: Thu, 21 Apr 2011 21:20:55 +0200
+Subject: [PATCH] endian.h: add some handy macros to be used in syscalls
+
+Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
+Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
+---
+
+--- a/include/endian.h
++++ b/include/endian.h
+@@ -55,6 +55,17 @@
+ # define __LONG_LONG_PAIR(HI, LO) HI, LO
+ #endif
+ 
++#ifdef _LIBC
++# ifndef __ASSEMBLER__
++#  include <stdint.h>
++#  define OFF_HI(offset) (offset >> 31)
++#  define OFF_LO(offset) (offset)
++#  define OFF64_HI(offset) (uint32_t)(offset >> 32)
++#  define OFF64_LO(offset) (uint32_t)(offset & 0xffffffff)
++#  define OFF_HI_LO(offset) __LONG_LONG_PAIR(OFF_HI(offset), OFF_LO(offset))
++#  define OFF64_HI_LO(offset) __LONG_LONG_PAIR(OFF64_HI(offset), OFF64_LO(offset))
++# endif
++#endif
+ 
+ #ifdef __USE_BSD
+ /* Conversion interfaces.  */