drm: aspeed: Clean up Kconfig options

The GFX IP is inside of the ASPEED BMC SoC so there is little use
enabling it on a kernel that does not support ASPEED.

When building with COMPILE_TEST the architecture many not have CMA
support, so to avoid breaking the build we only select these options if
the architecture supports the contiguous allocator.

I suspect the DRM_PANEL came from a cut/paste error.

Fixes: 4f2a8f5898 ("drm: Add ASPEED GFX driver")
Reported-by: Stephen Rothwell <[email protected]>
Reported-by: kernel test robot <[email protected]>
Signed-off-by: Joel Stanley <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

drivers/gpu/drm/aspeed/Kconfig

@@ -1,11 +1,11 @@
 config DRM_ASPEED_GFX
 	tristate "ASPEED BMC Display Controller"
 	depends on DRM && OF
+	depends on (COMPILE_TEST || ARCH_ASPEED)
 	select DRM_KMS_HELPER
 	select DRM_KMS_CMA_HELPER
-	select DRM_PANEL
-	select DMA_CMA
-	select CMA
+	select DMA_CMA if HAVE_DMA_CONTIGUOUS
+	select CMA if HAVE_DMA_CONTIGUOUS
 	select MFD_SYSCON
 	help
 	  Chose this option if you have an ASPEED AST2500 SOC Display