[coreboot-gerrit] Patch merged into coreboot/master: libpayload: x86/main - propagate return value of main()

the following patch was just integrated into master:
commit 7b681c5926d3699b33c936e34a8176833a03eaf2
Author: Mathias Krause 
Date:   Tue Feb 7 19:03:29 2017 +0100

libpayload: x86/main - propagate return value of main()

According to coreboot’s payload API [1], the called payload should be
    able to return a value via %eax. Support this by changing the prototype
    of start_main() and pass on the return value of main() to the caller
    instead of discarding it.

[1] https://www.coreboot.org/Payload_API

Change-Id: I8442faea19cc8e04487092f8e61aa4e5cba3ba76
    Signed-off-by: Mathias Krause 
    Reviewed-on: https://review.coreboot.org/18334
    Tested-by: build bot (Jenkins)
    Reviewed-by: Paul Menzel 
    Reviewed-by: Aaron Durbin

See https://review.coreboot.org/18334 for details.

-gerrit