msm: 8064: Add support for APQ8064 Rumi3

Add support for the APQ8064 Rumi3 machine type. Move the
dmov device initialization out of the common set of devices
initialized for all board configurations, and make it
specific to the sim device, as it does not yet work on the
Rumi3 hardware.

Signed-off-by: Joel King <joelking@codeaurora.org>