defconfig: sdm855: Enable DCC, Memory Dump and JTAGv8 drivers on SDM855

Enable configs for DCC v2, Memory dump v2 and JTAGv8 drivers on SDM855.

Change-Id: Icb5f432c2eb8be510206cb00079034803a4f3685
Signed-off-by: Rama Aparna Mallavarapu <aparnam@codeaurora.org>