ARM: dts: msm: add frequency to corner mappings for msm8226v2 and msm8926

Add frequency to corner mappings for turbo fuse corner frequencies in
1.2G and 1.4G speedbin tables which located at msm8226v2 and msm8926
clock-a7 device tree node.

1.2G/1.4G msm8226v2 and msm8926 parts can receive a dynamic quotient
adjustment to scale the CPR target quotient used for each corner, this
ensure these parts receive power saving when running at turbo
frequencies below the maximum possible turbo frequency.

Change-Id: Ie5992361a79950614d9e2b04a6bfb373e26088a3
Signed-off-by: Fenglin Wu <fenglinw@codeaurora.org>