trusted-firmware-a.mk: fix build with binutils 2.39

Starting from version 2.39 binutils now warns about sections with rwx
permissions. While this is generally desirable it breaks building
ARM TrustedFirmware-A bl2 which treats warnings as errors.
Disable the warning/error for now to fix build.

Signed-off-by: Daniel Golle <[email protected]>

include/trusted-firmware-a.mk

@@ -81,6 +81,7 @@ define Build/Compile/Trusted-Firmware-A
 		$(if $(DTC),DTC="$(DTC)") \
 		PLAT=$(PLAT) \
 		BUILD_STRING="OpenWrt v$(PKG_VERSION)-$(PKG_RELEASE) ($(VARIANT))" \
+		$(if $(CONFIG_BINUTILS_VERSION_2_39),LDFLAGS="-no-warn-rwx-segments") \
 		$(TFA_MAKE_FLAGS)
 endef