board/freescale: fix i.MX arm-trusted-firmware for GCC12

The arm-trusted-firmware package for IMX boards fails due to a GCC bug.
See the attached patch description for detail.

Fixes:

  https://gitlab.com/buildroot.org/buildroot/-/jobs/5134910620
  https://gitlab.com/buildroot.org/buildroot/-/jobs/5134910622
  https://gitlab.com/buildroot.org/buildroot/-/jobs/5134910624
  https://gitlab.com/buildroot.org/buildroot/-/jobs/5134910627

Signed-off-by: Brandon Maier <brandon.maier@collins.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 977965a83a2bc8da163ce45739c55bb775db55ce)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

board/freescale/common/patches/arm-trusted-firmware/0002-LF-7968-01-fix-Makefile-Suppress-array-bounds-error.patch

@@ -0,0 +1,51 @@
+From b2a94de52ae4a940a87d569815b19d3fa92dd32a Mon Sep 17 00:00:00 2001
+From: Tom Hochstein <tom.hochstein@nxp.com>
+Date: Mon, 16 May 2022 13:45:16 -0500
+Subject: [PATCH] LF-7968-01 fix(Makefile): Suppress array-bounds error
+
+The array-bounds error is triggered now in cases where it was silent
+before, causing errors like:
+
+```
+plat/imx/imx8m/hab.c: In function 'imx_hab_handler':
+plat/imx/imx8m/hab.c:64:57: error: array subscript 0 is outside array bounds of 'uint32_t[0]' {aka 'unsigned int[]'} [-Werror=array-bounds]
+   64 | #define HAB_RVT_CHECK_TARGET_ARM64      ((unsigned long)*(uint32_t *)(HAB_RVT_BASE + 0x18))
+      |                                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+```
+
+The error is a false-positive and is entered as a bug [1]. The problem
+is fixed partially in GCC 12 and fully in GCC 13 [2].
+
+The partial fix does not work here because the constant addresses used
+are less than the 4kB boundary chosen for the partial fix, so suppress
+the error until GCC is upgraded to 13.
+
+[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99578
+[2] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99578#c39
+
+Upstream-Status: Inappropriate [other]
+Signed-off-by: Tom Hochstein <tom.hochstein@nxp.com>
+Signed-off-by: Jacky Bai <ping.bai@nxp.com>
+Reviewed-by: Ye Li <ye.li@nxp.com>
+Signed-off-by: Brandon Maier <brandon.maier@collins.com>
+Upstream: https://github.com/nxp-imx/imx-atf/commit/058bf0f104115037d03e277f079825ef3659c5b9
+---
+ Makefile | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/Makefile b/Makefile
+index c87c3ae08..2d6b90f47 100644
+--- a/Makefile
++++ b/Makefile
+@@ -346,7 +346,7 @@ WARNINGS	+=		-Wshift-overflow -Wshift-sign-overflow \
+ endif
+ 
+ ifneq (${E},0)
+-ERRORS := -Werror
++ERRORS := -Werror -Wno-error=array-bounds
+ endif
+ 
+ CPPFLAGS		=	${DEFINES} ${INCLUDES} ${MBEDTLS_INC} -nostdinc	\
+-- 
+2.41.0
+