ARM: imx_v6_v7_defconfig: updates for Armadeus Systems APF6 boards

APF6 Dual and Quad SoM have an wl1271 wifi/bt chip. This chip needs
CONFIG_BT_HCIUART_LL.
APF6Dev carrier board has a SX8654 I2C touchscreen controller.

Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>