msm: 8064: add support for gpio/tlmm.

Added Kconfig entry to enable the GPIOMUX driver.
Updated Makefile to compile gpiomux driver files.
Added io map for TLMM device, and perform gpiomux
initialization without installing any gpios.
Gpios will be mapped when the peripheral connections
are finalized for virtio, cdp or other targets.

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