xtrend: update bsp

commit 60f62ee
Merge: 6f16056 b697798
Author: xtrendmaster <amicimax@aol.com>
Date:   Fri Nov 28 00:05:52 2014 +0000

    Merge pull request #1 from athoik/nandsim

    Enable nandsim module

commit b697798
Author: Athanasios Oikonomou <athoik@gmail.com>
Date:   Thu Nov 27 23:39:29 2014 +0200

    Enable nandsim module

    Enable CONFIG_MTD_NAND_NANDSIM as module in order to use with
    OpenMultiboot https://github.com/oe-alliance/openmultiboot
xp1000.conf: use mips32el-nf tune features

This takes care of omitting the fpu-hard tune feature,
and puts soft float packages in their own (mips32el-nf) feed.
Which is necessary, because hard/soft float feeds cannot be shared.
vuplus machine conf: do not set TARGET_FPU

arch-mips.inc takes care of that
(also, "hard" is not a valid value, and would cause
the mips32el feed to be rebuilt)
add backup files to gitignore
formuler: update bsp

commit eb5e082
Author: Formuler <github@formuler.tv>
Date:   Sat Nov 29 15:01:00 2014 +0100

    mips32el-nf tune features
mut@nt: update bsp

commit fd08547
Author: HD-Digital <hd.stb.digital@gmail.com>
Date:   Sat Nov 29 13:23:04 2014 +0100

    use mips32el-nf tune features
Merge branch 'master' of git://git.code.sf.net/p/openpli/openpli-oe-core