clk: qcom: clk-aop-qmp: Do not send duplicate requests to AOP

Currently, duplicate enable requests are sent for the qdss_qmp_clk
during its registration. This is not ideal behavior and should be
corrected.

Change-Id: I1d66ad83fe9c109a88df527ef3fae5fc60e855e7
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>