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: I561f1cadc0d06c2b2289dae0cb1be527f9bcd844
Revert "mm-video: venc: Correct a typo in variable name"

This reverts commit 26db9478de5ef9ba1ae381e9f218f9fc6618720c.