FP3: prima: - Use copy_from_user to get user space data

Driver is now using copy_from_user to access user space data,
hence avoiding page domain fault.

Change-Id: Ib4dcc36cd562435f5f960c502b33617b0d19227f
Reviewed-on: https://gerrit.mot.com/1076458


SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Prashanth Chakravarthy <a19110@motorola.com>
Submit-Approved: Jira Key
Signed-off-by: Andrew Hexen <SyberHexen@gmail.com>