Revert "coreboot: never, ever use Werror"

This reverts commit 2ecfe63b5f.

config/submodule/coreboot/default/libhwbase/patches/0001-disable-werror.patch

@@ -1,26 +0,0 @@
-From 215db3c92bc21d6d07d9cd6e209f45d90298fda8 Mon Sep 17 00:00:00 2001
-From: Leah Rowe <leah@libreboot.org>
-Date: Thu, 23 Apr 2026 20:45:13 +0100
-Subject: [PATCH 1/1] disable werror
-
-Signed-off-by: Leah Rowe <leah@libreboot.org>
----
- Makefile | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/Makefile b/Makefile
-index fb4c43c..58e080e 100644
---- a/Makefile
-+++ b/Makefile
-@@ -45,7 +45,7 @@ GNATBIND = $(CROSS_COMPILE)gnatbind
- 
- GCC_MAJOR = $(shell echo __GNUC__ | $(CC) -E - 2>/dev/null | tail -1)
- 
--CFLAGS += -Wuninitialized -Wall -Werror
-+CFLAGS += -Wuninitialized -Wall
- CFLAGS += -pipe -g
- CFLAGS += -Wstrict-aliasing -Wshadow
- CFLAGS += -fno-common -fomit-frame-pointer
--- 
-2.47.3
-