arm64: defconfig: Enable configs for MediaTek Genio EVK boards

Enable the missing configs to get all devices on the MediaTek Genio
1200, 700, 510 and 350 EVK boards probing, as indicated by the DT
kselftest.

This includes support for:

Genio 1200/700/510/350:
* MT6359/MT6357 PMICs Auxiliary ADC

Genio 1200/700/510:
* MDP3 (video scaling and color space conversion IP block)
* ITE IT5205 Type-C USB Alternate Mode Passive MUX
* Himax HX8279 controller based KD070FHFID078 DSI panel

Genio 700/510:
* Richtek RT1715 USB Type-C PD Controller

Genio 1200:
* MediaTek PCIe PHY
* Mediatek MT6360 USB Type-C Port Controller

Genio 350:
* STARTEK KD070FHFID015 DSI panel
* MediaTek UART DMA controller (APDMA)

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250513-genio-defconfig-v1-1-c3862f91b6b2@collabora.com


Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>