common: Add .u_boot_list into all linker files

Add section for the linker-generated lists into all possible linker
files, so that everyone can easily use these lists. This is mostly
a mechanical adjustment.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Joe Hershberger <joe.hershberger@gmail.com>
Cc: Mike Frysinger <vapier@gentoo.org>
diff --git a/arch/sandbox/cpu/u-boot.lds b/arch/sandbox/cpu/u-boot.lds
index 9960138..b7f25ab 100644
--- a/arch/sandbox/cpu/u-boot.lds
+++ b/arch/sandbox/cpu/u-boot.lds
@@ -28,6 +28,11 @@
 	_u_boot_cmd : { *(.u_boot_cmd) }
 	__u_boot_cmd_end = .;
 
+	. = ALIGN(4);
+	.u_boot_list : {
+	#include <u-boot.lst>
+	}
+
 	__u_boot_sandbox_option_start = .;
 	_u_boot_sandbox_getopt : { *(.u_boot_sandbox_getopt) }
 	__u_boot_sandbox_option_end = .;