omap: devices: Avoid merge conflict between ASoC and OMAP hwmod changes

Upcoming ASoC multi-component and OMAP hwmod changes will conflict
in arch/arm/mach-omap2/devices.c. Avoid this by moving a little bit
include statement introduced by ASoC Multi-Component Support patch.

Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>