clk: qcom: debugcc-sm8150: Add mccc_debug node

Change the name of the measure_only_bimc_clk to better reflect
the name of the clock(memory controller clock controller) we're trying to
measure as bimc(bus integrated memory controller) no longer exists.
Add an additional MC_CC debug base and dt binding in order to map the
mc clock period register used to calculate the frequency of the MC clock.

Change-Id: Iede4ea25c140fc5937f06175341f978c792a42a5
Signed-off-by: David Dai <daidavid1@codeaurora.org>