arm64: defconfig: Enable more Librem 5 hardware

This enables

- CONFIG_BATTERY_MAX17042: battery chip
- CONFIG_CHARGER_BQ25980: charge controller
- CONFIG_DRM_PANEL_MANTIX_MLAF057WE5: LCD panel
- CONFIG_GNSS/CONFIG_GNSS_MTK_SERIAL: GNSS receiver
- CONFIG_IIO_ST_LSM6DSX: IMU
- CONFIG_IMX_DCSS: 2nd display controller
- CONFIG_LEDS_LM3692X: LCD backlight
- CONFIG_REGULATOR_TPS65132: regulator for the LCD panel
- CONFIG_TOUCHSCREEN_EDT_FT5X06: touch controller
- CONFIG_TYPEC_TPS6598X: USB PD controller
- CONFIG_VCNL4000: ambient light and proximity sensor

as modules.

Signed-off-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>