cgpt: Move GuidToStr to firmware code

It allows to unify guid to string conversion for tools, FW and
depthcharge. Name of function was changed to GptGuidToStr to follow
convention for gpt_mics.c file.

BUG=None
TEST=Build and run firmware on redrix
BRANCH=main

Change-Id: I41976da20f774953d0b0ddd2a3e4ce9032b48654
Signed-off-by: Grzegorz Bernacki <bernacki@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/6329627
Reviewed-by: Konrad Adamczyk <konrada@google.com>
Reviewed-by: Jakub "Kuba" Czapiga <czapiga@google.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
8 files changed