ARM: dts: msm: Add energy costs for trinket

Add cpu and cluster energy costs with available frequencies for trinket,
these are used by energy aware scheduler in task placement decisions.

Change-Id: Ic1e0f70234766e8d2208a1ed52593661f2055e76
Signed-off-by: Lingutla Chandrasekhar <clingutla@codeaurora.org>