package/freescale-imx: Add option for DDR FW need

Only some i.MX8 needs a DDR training firmware (8M, 8MM, 8MN). Some other
i.MX8 (QuadMax, QuadXPlus) rely on system controller for that task.

Suggested-by: Julien Olivain <julien.olivain@oss.nxp.com>
Signed-off-by: Stephane Viau <stephane.viau@oss.nxp.com>
Reviewed-by: Gary Bisson <gary.bisson@boundarydevices.com>
[yann.morin.1998@free.fr:
  - use the new variable to drive the firmware installation
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/freescale-imx/Config.in

@@ -45,12 +45,15 @@ config BR2_PACKAGE_FREESCALE_IMX_PLATFORM_IMX8
 
 config BR2_PACKAGE_FREESCALE_IMX_PLATFORM_IMX8M
 	bool "imx8m"
+	select BR2_PACKAGE_FREESCALE_IMX_NEED_DDR_FW
 
 config BR2_PACKAGE_FREESCALE_IMX_PLATFORM_IMX8MM
 	bool "imx8mm"
+	select BR2_PACKAGE_FREESCALE_IMX_NEED_DDR_FW
 
 config BR2_PACKAGE_FREESCALE_IMX_PLATFORM_IMX8MN
 	bool "imx8mn"
+	select BR2_PACKAGE_FREESCALE_IMX_NEED_DDR_FW
 
 config BR2_PACKAGE_FREESCALE_IMX_PLATFORM_IMX8X
 	bool "imx8x"
@@ -96,6 +99,9 @@ config BR2_PACKAGE_FREESCALE_IMX_HAS_VIV_GPU
 		BR2_PACKAGE_FREESCALE_IMX_PLATFORM_IMX8MN || \
 		BR2_PACKAGE_FREESCALE_IMX_PLATFORM_IMX8X
 
+config BR2_PACKAGE_FREESCALE_IMX_NEED_DDR_FW
+	bool
+
 source "package/freescale-imx/imx-alsa-plugins/Config.in"
 source "package/freescale-imx/imx-codec/Config.in"
 source "package/freescale-imx/imx-kobs/Config.in"

package/freescale-imx/firmware-imx/firmware-imx.mk

@@ -18,7 +18,7 @@ define FIRMWARE_IMX_EXTRACT_CMDS
 	$(call FREESCALE_IMX_EXTRACT_HELPER,$(FIRMWARE_IMX_DL_DIR)/$(FIRMWARE_IMX_SOURCE))
 endef
 
-ifeq ($(BR2_PACKAGE_FREESCALE_IMX_PLATFORM_IMX8M)$(BR2_PACKAGE_FREESCALE_IMX_PLATFORM_IMX8MM)$(BR2_PACKAGE_FREESCALE_IMX_PLATFORM_IMX8MN),y)
+ifeq ($(BR2_PACKAGE_FREESCALE_IMX_NEED_DDR_FW),y)
 FIRMWARE_IMX_INSTALL_IMAGES = YES
 FIRMWARE_IMX_DDRFW_DIR = $(@D)/firmware/ddr/synopsys
 define FIRMWARE_IMX_PREPARE_LPDDR4_FW