Consolidate intel vga int15 hooks

Change-Id: I9366dded98bf15f6da44ce893dd10698ba09fd55
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/6820
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
diff --git a/src/mainboard/thomson/ip1000/Kconfig b/src/mainboard/thomson/ip1000/Kconfig
index a68c72a..80d365c 100644
--- a/src/mainboard/thomson/ip1000/Kconfig
+++ b/src/mainboard/thomson/ip1000/Kconfig
@@ -9,6 +9,7 @@
 	select HAVE_PIRQ_TABLE
 	select UDELAY_TSC
 	select BOARD_ROMSIZE_KB_512
+	select INTEL_INT15
 
 config MAINBOARD_DIR
 	string