arm: x86: Drop command-line code when CONFIG_CMDLINE is disabled

Update the link script to drop this code when not needed. This is only done
for two architectures at present.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/cpu/u-boot.lds b/arch/arm/cpu/u-boot.lds
index 13aa4fa..cfab8b0 100644
--- a/arch/arm/cpu/u-boot.lds
+++ b/arch/arm/cpu/u-boot.lds
@@ -14,6 +14,9 @@
 ENTRY(_start)
 SECTIONS
 {
+#ifndef CONFIG_CMDLINE
+	/DISCARD/ : { *(.u_boot_list_2_cmd_*) }
+#endif
 #if defined(CONFIG_ARMV7_SECURE_BASE) && defined(CONFIG_ARMV7_NONSEC)
 	/*
 	 * If CONFIG_ARMV7_SECURE_BASE is true, secure code will not
diff --git a/arch/x86/cpu/u-boot.lds b/arch/x86/cpu/u-boot.lds
index b0d8531..36f59ea 100644
--- a/arch/x86/cpu/u-boot.lds
+++ b/arch/x86/cpu/u-boot.lds
@@ -12,6 +12,10 @@
 
 SECTIONS
 {
+#ifndef CONFIG_CMDLINE
+	/DISCARD/ : { *(.u_boot_list_2_cmd_*) }
+#endif
+
 	. = CONFIG_SYS_TEXT_BASE;	/* Location of bootcode in flash */
 	__text_start = .;
 	.text  : { *(.text*); }