nb/intel: Use get_int_option()

Change-Id: I8896531d6df729709456bc6e79e02136d9ea7b3b
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47112
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
diff --git a/src/northbridge/intel/ironlake/raminit.c b/src/northbridge/intel/ironlake/raminit.c
index 4d8fa13..8f4aba5 100644
--- a/src/northbridge/intel/ironlake/raminit.c
+++ b/src/northbridge/intel/ironlake/raminit.c
@@ -3102,10 +3102,7 @@
 	mchbar_write16(0x1170, 0xb880);
 	mchbar_clrsetbits8(0x1210, ~0, 0x84);
 
-	if (get_option(&gfxsize, "gfx_uma_size") != CB_SUCCESS) {
-		/* 0 for 32MB */
-		gfxsize = 0;
-	}
+	gfxsize = get_int_option("gfx_uma_size", 0);	/* 0 for 32MB */
 
 	ggc = 0xb00 | ((gfxsize + 5) << 4);