[OE-core] kernel cmdline mismatch for root= for vmdk and linux-yocto

[Khem Raj]

commit 842a797460cd07b779ab588a4ece7e5d4d97417b
Author: Robert Yang <liezhi.yang at windriver.com>

Date:   Tue Jul 29 00:05:04 2014 -0700

    image-vmdk.bbclass: use sda rather than hda

    The modern kernels may not support IDE (CONFIG_IDE=y), but it should
    support SCSI in most of the cases. The boot-directdisk.bbclass uses
    sda, too.

    Remove an extra space from image-live.bbclass and image-vmdk.bbclass to
    not confuse the user.

    Signed-off-by: Robert Yang <liezhi.yang at windriver.com>
    Signed-off-by: Saul Wold <sgw at linux.intel.com>


changed

-SYSLINUX_ROOT = "root=/dev/hda2 "
+SYSLINUX_ROOT ?= "root=/dev/sda2"

but I see that linux-yocto ( 3.17) for qemu still expects /dev/hda2,
so I guess we also need to set this up in qemu machine conf to match
linux-yocto's expectation