Integrate linux-imx-kuk/add_ucb1400_poll_mode

Commit: seco-ne/kernel/linux-imx-kuk@ee1d241e

driver:ucb1400: Fix logic error in pen-down detection

The pen-up debounce was always run, even when the pen wasn't initially down.

BCS 746-001452

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Commit: seco-ne/kernel/linux-imx-kuk@221cd4fa

dts:mc3: Disable IRQ for UCB1400

We had issues with the IRQ of the WM9705. Added the same workaround to the UCB1400 and disable the IRQ.

BCS 746-001452

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Commit: seco-ne/kernel/linux-imx-kuk@d2f8b709

driver:ucb1400: Remove IRQ detect function

BCS 746-001452

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Commit: seco-ne/kernel/linux-imx-kuk@db88172e

driver:ucb1400: Added reader/poll mode

Added a new mode, that polls the touchscreen periodically instead of using the IRQ to trigger a read.

BCS 746-001452