(free_to_heap): Unlock the heap before returning in the __UCLIBC_UCLINUX_BROKEN_MUNMAP__ case.  Fix from YYang1@Winbond.com.tw.
(free_to_heap): Unlock the heap before returning in the
__UCLIBC_UCLINUX_BROKEN_MUNMAP__ case.  Fix from YYang1@Winbond.com.tw.

joel-porquet/tsar-uclibc,joel-porquet/tsar-uclibc,joel-porquet/tsar-uclibc,joel-porquet/tsar-uclibc