Port uClibc patches to 0.9.30.2

Some patches from 0.9.30.1 now applied upstream. The reminder have
been only slightly modified to apply cleanly to the new base.

Signed-off-by: Joachim Nilsson <jocke@vmlinux.org>

reporter_name="Yann E. MORIN"

reporter_url="http://ymorin.is-a-geek.org/projects/crosstool"

reporter_comment="Experimental toolchain for ARM cortex-m3 in Thumb-only, noMMU, and newlib."