msm: vidc: Increment interrupt counts outside of dprintk()

If the dprintk() is being suppressed due to the debug level, the
interrupt counts are not incremented.  The interrupt counts are vaguely
useful when looking at ram dumps, so increment them outside of the
context of dprintk().

Change-Id: I2a509b7b923868d65b654f0658f31c7c65542beb
Signed-off-by: Deva Ramasubramanian <dramasub@codeaurora.org>