The qualcomm TLMM (top level mode manager) is their gpio/pinmux hardware
controller.
Although the pinmux is generic enough to use for the IPQ/APQ series
chips, I'm directly calling the IPQ4018 routines to expedite bring-up.
Notably, I'm not yet implementing the interrupt support - it's not
required at this stage of bring-up.
qca: add the TLMM code into the build
This adds the IPQ4018 TLMM code into the IPQ4018 build.