arm: dts: qcom: Fix ipq board clock rates

The ipq board has these rates as 25MHz, and not 19.2 and 27. I
copy/pasted from other boards that have those rates but forgot
to fix the rates here.

Fixes: 30fc4212 ("arm: dts: qcom: Add more board clocks")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>