ARM: shmobile: defconfig: Enable more support for RZN1D-DB/EB

Enable more support for the Renesas RZN1D-DB and RZN1D-EB development
and expansion boards:
  - Polled GPIO buttons (also used on the Marzen development board),
  - Synopsys DesignWare I2C adapters,
  - National Semiconductor LM75 sensors and compatibles (which requires
    not disabling Hardware Monitoring support),
  - Arasan SDHCI controllers.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/a40aa69832ef292497b9170e2ad607bd9dfd7e21.1745842538.git.geert+renesas@glider.be