clock-8x60: add jpegd_clk for msm_mercury

Fix the uninitialized rate into mercury that trigger the kernel message : "Rate 2147483647 for jpegd_clk is greater than highest Fmax"
Merge pull request #2 from mickybart/android-msm-sony-fuji-3.4-lollipop-clk

msm: clock-8x60: add jpegd_clk for msm_mercury