pinctrl: spacemit: PINCTRL_SPACEMIT_K1 should not default to y unconditionally

Merely enabling compile-testing should not enable additional
functionality.

Fixes: 7ff4faba ("pinctrl: spacemit: enable config option")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Yixun Lan <dlan@gentoo.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Alex Elder <elder@riscstar.com>
Reviewed-by: Alex Elder <elder@riscstar.com>
Link: https://lore.kernel.org/6881b8d1ad74ac780af8a974e604b5ef3f5d4aad.1742198691.git.geert+renesas@glider.be


Signed-off-by: Linus Walleij <linus.walleij@linaro.org>