msm: kgsl: set userspace memory type on each memdesc

Userspace passes a set of values indicating how it
uses each buffer it allocates, which were previously
ignored. These are useful hints for debugging and
profiling applications. These flags will be exposed
through ftrace and debugfs in later patches.

Change-Id: Ie26c26e413c074dcd5dfa24d355443ee47c3cd6a
Signed-off-by: Shubhraprakash Das <sadas@codeaurora.org>
Signed-off-by: Jeremy Gebben <jgebben@codeaurora.org>