之前提交设置loongson2f默认使用gcc4.4.3，binutils2.20.1，eglibc2.11，写错地方，修复
Merge branch 'framework' into loongson2f
为binutils添加龙芯2f相关支持，汇编时支持-mfix-ls2f-kernel选项：loongson2f and amd5536 patch on mipsel.修改binutils在jr/jalr前把指令地址限制到一定范围(&= 0xffffffffcfffffff，保证一定不会出现 bfd0xxxx从而避免发出非预期IO南桥挂掉)
Merge branch 'framework' into loongson2f
为loongson2f添加默认profiles软件包
loongson2f添加U盘启动
loongson2f的内核、跟文件系统都以loongson2f-openwrt开头
loongson2f的内核、跟文件系统都以loongson2f-openwrt开头
Merge branch 'framework'
Merge branch 'loongson2f'