libpayload: Add PAYLOAD_INFO macro

Adds the PAYLOAD_INFO macro to store payload information in a data
section in the ELF which can be consumed by other entities.

Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Acked-by: Peter Stuge <peter@stuge.se>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3354 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

payloads/libpayload/lib/libpayload.ldscript

@@ -81,5 +81,5 @@ SECTIONS
 
 	_end = .;
 
-	/DISCARD/ : { *(.comment) *(.note) *(.note.*) }
+	/DISCARD/ : { *(.comment) }
 }