nis: fix ypdomainname configuration in ypbind init script

The Open Embedded (meta-oe) nis package still has the ypbind init bug.
Reapply the scripting fix in commit 2027af7c30a2c86f7e27f4c5d34bdfa5c1e0fc91
but rework to co-exist with the meta-oe nis recipe.

Signed-off-by: Hong H. Pham <hong.pham@windriver.com>
linux-yocto: Add defconfigs for axm5500, axm5500sim, and elpaso

Add a complete kernel configuration (defconfig) for the axm5500,
axm5500sim, and elpaso boards for the 3.4 and 3.10 standard and preempt-rt
kernels.

Signed-off-by: Hong H. Pham <hong.pham@windriver.com>

Conflicts:
	recipes-kernel/linux/linux-yocto_3.4.bbappend