disable lto for uclibc, it fails

toolchain/uClibc/Makefile

@@ -8,6 +8,8 @@ include ../rules.mk
 include Makefile.inc
 include ${TOPDIR}/mk/buildhlp.mk
 
+TARGET_CFLAGS:=$(filter-out -flto,$(TARGET_CFLAGS))
+
 ifeq (${ADK_MAKE_PARALLEL},y)
 UCLIBC_MAKEOPTS+=	-j${ADK_MAKE_JOBS}
 endif