imx: Don't define __ASSEMBLY__ in source files

This is supposed to be a build-system flag. Move it there so we can
define it before linux/kconfig.h is included.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index 07954bc..77e7270 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -91,7 +91,7 @@
 endif
 
 quiet_cmd_cpp_cfg = CFGS    $@
-      cmd_cpp_cfg = $(CPP) $(cpp_flags) -x c -o $@ $<
+      cmd_cpp_cfg = $(CPP) $(cpp_flags) -D__ASSEMBLY__ -x c -o $@ $<
 
 # mkimage source config file
 IMX_CONFIG = $(CONFIG_IMX_CONFIG:"%"=%)
diff --git a/arch/arm/mach-imx/imx8m/imximage-8mm-lpddr4.cfg b/arch/arm/mach-imx/imx8m/imximage-8mm-lpddr4.cfg
index 1a2e43e..e06d53e 100644
--- a/arch/arm/mach-imx/imx8m/imximage-8mm-lpddr4.cfg
+++ b/arch/arm/mach-imx/imx8m/imximage-8mm-lpddr4.cfg
@@ -3,7 +3,6 @@
  * Copyright 2019 NXP
  */
 
-#define __ASSEMBLY__
 
 FIT
 BOOT_FROM	sd
diff --git a/arch/arm/mach-imx/imx8m/imximage-8mn-ddr4.cfg b/arch/arm/mach-imx/imx8m/imximage-8mn-ddr4.cfg
index 1405c65..120631a 100644
--- a/arch/arm/mach-imx/imx8m/imximage-8mn-ddr4.cfg
+++ b/arch/arm/mach-imx/imx8m/imximage-8mn-ddr4.cfg
@@ -3,7 +3,6 @@
  * Copyright 2019 NXP
  */
 
-#define __ASSEMBLY__
 
 FIT
 ROM_VERSION	v2
diff --git a/arch/arm/mach-imx/imx8m/imximage-8mn-lpddr4.cfg b/arch/arm/mach-imx/imx8m/imximage-8mn-lpddr4.cfg
index 4c63b31..7dae3fa 100644
--- a/arch/arm/mach-imx/imx8m/imximage-8mn-lpddr4.cfg
+++ b/arch/arm/mach-imx/imx8m/imximage-8mn-lpddr4.cfg
@@ -3,7 +3,6 @@
  * Copyright 2019 NXP
  */
 
-#define __ASSEMBLY__
 
 FIT
 ROM_VERSION	v2
diff --git a/arch/arm/mach-imx/imx8m/imximage-8mp-lpddr4.cfg b/arch/arm/mach-imx/imx8m/imximage-8mp-lpddr4.cfg
index 586a5ff..0fba9f5 100644
--- a/arch/arm/mach-imx/imx8m/imximage-8mp-lpddr4.cfg
+++ b/arch/arm/mach-imx/imx8m/imximage-8mp-lpddr4.cfg
@@ -3,7 +3,6 @@
  * Copyright 2019 NXP
  */
 
-#define __ASSEMBLY__
 
 FIT
 ROM_VERSION	v2
diff --git a/arch/arm/mach-imx/imx8m/imximage.cfg b/arch/arm/mach-imx/imx8m/imximage.cfg
index 2a3f959..30490e0 100644
--- a/arch/arm/mach-imx/imx8m/imximage.cfg
+++ b/arch/arm/mach-imx/imx8m/imximage.cfg
@@ -3,7 +3,6 @@
  * Copyright 2018-2021 NXP
  */
 
-#define __ASSEMBLY__
 
 FIT
 BOOT_FROM	sd
diff --git a/arch/arm/mach-imx/spl_qspi.cfg b/arch/arm/mach-imx/spl_qspi.cfg
index 1e39ae2..6df779b 100644
--- a/arch/arm/mach-imx/spl_qspi.cfg
+++ b/arch/arm/mach-imx/spl_qspi.cfg
@@ -3,7 +3,6 @@
  * Copyright (C) 2014, Compulab Ltd - http://compulab.co.il/
  */
 
-#define __ASSEMBLY__
 #include <config.h>
 
 IMAGE_VERSION	2
diff --git a/arch/arm/mach-imx/spl_sd.cfg b/arch/arm/mach-imx/spl_sd.cfg
index dbaee81..e739b54 100644
--- a/arch/arm/mach-imx/spl_sd.cfg
+++ b/arch/arm/mach-imx/spl_sd.cfg
@@ -3,7 +3,6 @@
  * Copyright (C) 2014, Compulab Ltd - http://compulab.co.il/
  */
 
-#define __ASSEMBLY__
 #include <config.h>
 
 IMAGE_VERSION	2