Fix conditions for enabling non-legacy/atomic DDX color mgmt support

The conditions for CRTC color mgmt support are not defined correctly. It only enables atomic (non-legacy) color mgmt support if all DRM CRTC color properties are enabled (https://gitlab.freedesktop.org/xorg/driver/xf86-video-amdgpu/-/blob/master/src/drmmode_display.c#L3342)

/* cm is enabled only if all prop ids are found */

But according to DRM documentation, each DRM color mgmt property is optional and the driver should enable only the supported properties (in the set of degamma/ctm/gamma props). KMD uses gamma LUT size to decide between legacy and atomic path and enables each property according to the HW caps.