clk: qcom: msm8960: Fix ce3_src register offset

The offset seems to have been copied from the sata clk. Fix it so
that enabling the crypto engine source clk works.

Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Fixes: 5f775498 ("clk: qcom: Fully support apq8064 global clock control")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>