Add two more boards supported by flashrom

 - ASUS A8N-SLI (reported by Ryan McLean <pvtryan100@googlemail.com>)

 - MSI/Medion MS-7255 (P4M890M) (reported by Jörg Schirottke <master@kanotix.com>)

Corresponding to flashrom svn r565.
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>

board_enable.c

@@ -704,6 +704,7 @@ const struct board_info boards_ok[] = {
 	{ "ASI",		"MB-5BLMP", },
 	{ "ASUS",		"A8N-E", },
 	{ "ASUS",		"A8NE-FM/S", },
+	{ "ASUS",		"A8N-SLI", },
 	{ "ASUS",		"A8N-SLI Premium", },
 	{ "ASUS",		"A8V-E Deluxe", },
 	{ "ASUS",		"M2A-VM", },
@@ -733,6 +734,7 @@ const struct board_info boards_ok[] = {
 	{ "MSI",		"MS-7236 (945PL Neo3)", },
 	{ "MSI",		"MS-7345 (P35 Neo2-FIR)", },
 	{ "MSI",		"MS-7168 (Orion)", },
+	{ "MSI",		"MS-7255 (P4M890M)", },
 	{ "NEC",		"PowerMate 2000", },
 	{ "PC Engines",		"Alix.1c", },
 	{ "PC Engines",		"Alix.2c2", },