i2c: qcom-geni: Use generic definitions for bus frequencies

Since we have generic definitions for bus frequencies, let's use them.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Christopher Obbard <christopher.obbard@linaro.org>
Reviewed-by: Mukesh Kumar Savaliya <quic_msavaliy@quicinc.com>
Link: https://lore.kernel.org/r/20250322144736.472777-1-andriy.shevchenko@linux.intel.com


Signed-off-by: Andi Shyti <andi.shyti@kernel.org>