ARM: Make low-level printk work

Makes low-level printk work.

Signed-off-by: Tony Lindgren <tony@atomide.com>
ARM: Fix "Make low-level printk work" to use a separate config option

Signed-off-by: Arve Hjønnevåg <arve@android.com>
defconfig: apq8064: enable PRINTK_DIRECT
msm: apq8064: initial devtree