x264_r2245.bb: Fix build when DISTRO_FEATURES lacks "largefile".

x264_r2245.bb: Fix build when DISTRO_FEATURES lacks "largefile".

mipsel-oe-linux-uclibc-gcc -march=mips32 -O3 -ffast-math -isystem/mnt/oe/tmp/sysroots/mipsel-oe-linux-uclibc/include -fexpensive-optimizations -fomit-frame-pointer -frename-registers -Os -Wall -I. -fPIC -std=gnu99 -s -fomit-frame-pointer -isystem/mnt/oe/tmp/sysroots/mipsel-oe-linux-uclibc/include  -c -o common/mc.o common/mc.c
In file included from /mnt/oe/tmp/sysroots/mipsel-oe-linux-uclibc/include/stdio.h:28:0,
                 from common/osdep.h:29,
                 from common/common.h:76,
                 from common/mc.c:24:
/mnt/oe/tmp/sysroots/mipsel-oe-linux-uclibc/include/features.h:216:5: error: #error It appears you have defined _FILE_OFFSET_BITS=64. Unfortunately, uClibc was built without large file support enabled.

Signed-off-by: Graham Gower <graham.gower@gmail.com>
Acked-by: Khem Raj <raj.khem@gmail.com>