nit6xlite: add ili210x touch controller

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
nitrogen6x: add ili210x touch controller

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
sabrelite: add ili210x touch controller

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
nitrogen6_max: add ili210x touch controller

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
nit6xlite_defconfig: add ILI210X touch screen

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
nitrogen6x_defconfig: add ILI210X touch screen

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
ili210x: Allow use with Device Tree

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>