ANDROID: Kconfig.gki: Remove GKI_QCOM_CLKS_CONFIGS and QCOM_RPMHPD from GKI_HACKS config option

This removes GKI_QCOM_CLKS_CONFIGS and the one QCOM_RPMHPD
config it selects from the GKI_HACKS config entry, as
we will move it to being a module.

Bug: 161478631
Bug: 161128971
Signed-off-by: John Stultz <john.stultz@linaro.org>
Change-Id: Idc2eedf3ed3bfd3e88f9a577934943f86df16ab3