Move hard-coded repo and repo name to Kconfig as default value DEPTHCHARGE_REPO default to: https://chromium.googlesource.com/chromiumos/platform/depthcharge DEPTHCHARGE_BRANCH default to: origin/main When DEPTHCHARGE_MASTER=y, DEPTHCHARGE_BRANCH can be used to point out a particular branch. This change enable to use mirrored internal depthcharge repo and branch for early SOC development (before upstreaming SOC and dephthcharge code). TEST=Build coreboot and check the repo remote link from: payloads/external/depthcharge/depthcharge Signed-off-by: Cliff Huang <cliff.huang@intel.com> Change-Id: Icca10aa770b7b7a6e010f58bcf1e4f0a3401681a Reviewed-on: https://review.coreboot.org/c/coreboot/+/80726 Reviewed-by: Bora Guvendik <bora.guvendik@intel.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com> Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: Zhixing Ma <zhixing.ma@intel.com>