clk: qcom: ipq806x: Fix board clk rates

The clocks on these boards run at 25 MHz, not 19.2 and 27 like
other platforms. Unfortunately I copy/pasted from other similar
SoCs but forgot this one is different. Fix it.

Fixes: a085f877 ("clk: qcom: Move cxo/pxo/xo into dt files")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>