clk: qcom: dispcc-kona: remove mdss_dp_crypto clocks

Remove mdss_dp_crypto clocks due to the fact that these clocks are not
controlled by any consumers and that their RCG SRC_SEL and DIV_SEL are
tied down. The enable signal for the CBCs are also tied to the enable
from the link clock and HW does not allow software to make any direct
configuration changes.

Change-Id: I49ea95ba372fc8e5dc05801a9458f1c2bdd0ef00
Signed-off-by: David Dai <daidavid1@codeaurora.org>