arm64: defconfig: Enable CMA performance optimizations on Lahaina

Enable CONFIG_CMA_DIRECT_UTILIZATION and CONFIG_CMA_PCP_LISTS
to increase CMA utilization, and thus, improve memory utilization.

Change-Id: I2caa8d9f913bce8aa0171100f767c30e261074a6
Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org>