To my knowledge, Windows has no way of explicitly identifying the two apart and thus ConfigMgr has no way either - a hard disk is a hard disk is a hard disk.
Depending on how many models of SSDs you have deployed in your organization, you could identify the SSDs by either caption or PNPDeviceID though (both from Win32_DiskDrive) -- caption is not collected by default so if you were going to use that you'd have
to enable it in SMS_DEF.mof.
Jason | http://myitforum.com/cs2/blogs/jsandys | http://blogs.catapultsystems.com/jsandys/default.aspx | Twitter @JasonSandys