msm: camera: isp: Remove EOF bit in irq mask

Remove EOF bit in irq mask. This helps in reducing number of irq's
generated by ISP per frame.

Change-Id: I63b019120516d260734ec56e9878c193efe89094
Signed-off-by: Sreesudhan Ramakrish Ramkumar <srramku@codeaurora.org>