eglibc: fix mips64 abi selection, default to o64 instead of n32

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40888 3c298f89-4303-0410-b956-a3cf2f4a3e73
fstools: update to the latest version, fixes build for 64 bit targets

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40889 3c298f89-4303-0410-b956-a3cf2f4a3e73