IMX8: fix build error

- fixes: unrecognized option '-Wl,--no-warn-rwx-segment'
- add a patch to atf that removes the unrecognized linker options

Signed-off-by: Martin Schmiedel <Martin.Schmiedel@tq-group.com>

config/sources/families/include/imx8_common.inc

@@ -16,6 +16,7 @@ IMX_FIRMWARE="${IMX_FIRMWARE:-"firmware-imx-8.12"}"
 # ATF_UART_BASE musst set in board
 # MAP = target_make,target_patchdir,target_files
 # use xxx:xxx to rename files after build
+ATFPATCHDIR='atf-imx8'
 ATF_TARGET_MAP="PLAT=${ATF_PLAT} IMX_BOOT_UART_BASE=${ATF_UART_BASE} bl31;;build/imx8mp/release/bl31.bin"
 UBOOT_TARGET_MAP="flash.bin;;flash.bin"
 

patch/atf/atf-imx8/0001-fix-needed-by-armbian-build-system.patch

@@ -0,0 +1,30 @@
+From 230e25fbcd0a36dfaaa8f3b9f0ad7d9cd0500736 Mon Sep 17 00:00:00 2001
+From: Martin Schmiedel <Martin.Schmiedel@tq-group.com>
+Date: Wed, 28 May 2025 14:02:39 +0200
+Subject: [PATCH] fix needed by armbian build system
+
+remove possibly contained gcc linker flags
+
+Signed-off-by: Martin Schmiedel <Martin.Schmiedel@tq-group.com>
+---
+ Makefile | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/Makefile b/Makefile
+index ea5701347..7a4ff1244 100644
+--- a/Makefile
++++ b/Makefile
+@@ -343,6 +343,10 @@ GCC_V_OUTPUT		:=	$(shell $(CC) -v 2>&1)
+ 
+ TF_LDFLAGS		+=	-z noexecstack
+ 
++# remove possibly contained gcc linker flags we use the linker directly
++gcc_linker_flags        =	-Wl,--no-warn-rwx-segment
++TF_LDFLAGS		:= 	$(filter-out $(gcc_linker_flags), $(TF_LDFLAGS))
++
+ # LD = armlink
+ ifneq ($(findstring armlink,$(notdir $(LD))),)
+ 	TF_LDFLAGS		+=	--diag_error=warning --lto_level=O1
+-- 
+2.43.0
+