ARM: dts: msm: add mdss pll driver resources for MSM8994

MDSS PLL driver handles the resources for output interface DSI
through dts configuration. These resource management includes
the power supply entries, clocks, IO register range and other
PLL specific entires. This change specifies resource for 8994
target.

Change-Id: Ide0c8db7287817c604cbefc8be7e30037d82656d
Signed-off-by: Chandan Uddaraju <chandanu@codeaurora.org>