mainboard/intel/emeraldlake2 Fix usage of GNU field designator ext

Following the reasoning in,
8089f17 mainboard/lenovo/x230 Fix usage of GNU field designator extension

In C99 we defined a syntax for this. GCC's old syntax was deprecated.

Change-Id: Idda1a49277c156670014fac27b9f1c378f8df0cd
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/5827
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
1 file changed