[Title] SEL Verification - Fix a bug that causes SEGV when X server tries to remove a multitouch device
[Issue#] S1-7024
[Problem] A segmentation fault was made when X server tries to remove a multitouch device.
[Cause] X multitouch driver tries to free a pointer(device name) which was not allocated by malloc.
[Solution] Allocate a pointer by malloc() for the device name.
[SCMRequest] N/A