[U-Boot] [PATCH 31/45] Rename GPT_HEADER_SIGNATURE to avoid conflict

[sjg at google.com]

The current name conflicts with the Chrome OS verified boot library, which
prevents it being built. That library uses a string whereas U-Boot uses a
64-bit hex value. Rename this in U-Boot.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 disk/part_efi.c    | 6 +++---
 include/part_efi.h | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

Applied to u-boot-dm