msm-vidc: fix if check in setup_ucregion_memory_map_iris1 function

Currently video driver will try to write to SFR register even if
address is 0 due to incorrect if check, fix it by removing second
operand sid from if check.

Change-Id: Idb5af4af70dba658e8ee3e8b00ea7112e6ae2660
Signed-off-by: Dikshita Agarwal <dikshita@codeaurora.org>