mm-video: venc: Correct a typo in variable name A kernel variable was to be defined as unsigned long but it is mistakenly defined as unsigned only, the space is missing after long. This bug is silent because unsigned is also a valid data type by itself. Corresponding to kernel fix, similar correction is done in userspace code.

Change-Id: Ie58f275149dc9c85553f75e02594113b1a03ddcf
CRs-fixed: 556771