fiptool: disable pedantic flag to avoid errors with older libc

This change disarms soime pedantic errors encountered when using a new
gcc-13 with older system glibc headers. In particular when using yocto
with a buildtools tarball thius situation can occur.

Signed-off-by: Josua Mayer <josua@solid-run.com>

Author: Josua-SR

tools/fiptool/Makefile

@@ -17,7 +17,7 @@ OBJECTS := fiptool.o tbbr_config.o
 STATIC ?= 0
 
 override CPPFLAGS += -D_GNU_SOURCE -D_XOPEN_SOURCE=700
-HOSTCCFLAGS := -Wall -Werror -pedantic -std=c99
+HOSTCCFLAGS := -Wall -Werror -std=c99
 ifeq (${DEBUG},1)
   HOSTCCFLAGS += -g -O0 -DDEBUG
 else