Revert "defconfig: arm64: Enable the QCOM cpufreq driver"

Disabling QCOM cpufreq driver, as it's not needed on Kona.
This reverts commit f31cedbc.

Change-Id: I73be755d95b05dceb420f637e78ab37b42337daf
Signed-off-by: Venkata Narendra Kumar Gutta <vnkgutta@codeaurora.org>