drm/logicvc: Kconfig: select REGMAP and REGMAP_MMIO

drm/logicvc driver is depend on REGMAP and REGMAP_MMIO, should select this
two kconfig option, otherwise the driver failed to compile on platform
without REGMAP_MMIO selected:

ERROR: modpost: "__devm_regmap_init_mmio_clk" [drivers/gpu/drm/logicvc/logicvc-drm.ko] undefined!
make[1]: *** [scripts/Makefile.modpost:136: Module.symvers] Error 1
make: *** [Makefile:1978: modpost] Error 2

Signed-off-by: Sui Jingfeng <suijingfeng@loongson.cn>
Acked-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Fixes: efeeaef ("drm: Add support for the LogiCVC display controller")
Link: https://patchwork.freedesktop.org/patch/msgid/20230608024207.581401-1-suijingfeng@loongson.cn
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>

Author: Sui Jingfeng

drivers/gpu/drm/logicvc/Kconfig

@@ -5,5 +5,7 @@ config DRM_LOGICVC
 	select DRM_KMS_HELPER
 	select DRM_KMS_DMA_HELPER
 	select DRM_GEM_DMA_HELPER
+	select REGMAP
+	select REGMAP_MMIO
 	help
 	  DRM display driver for the logiCVC programmable logic block from Xylon