clk: qcom: gcc-lahaina: Keep ice core memory retained across gdsc collapse

Enable FORCE_MEM_CORE_ON for ice core clock to retain keys
in memory even on gdsc collpase. This will reduce performanace hit
as client does not need to load/map keys in/out of UFS LPM state.

Change-Id: If7d970e37c3fc7147fd84683bbbefa2b78fd253a
Signed-off-by: Vivek Aknurwar <viveka@codeaurora.org>