nb/i945/raminit.c: Don't hard code 'bool integrated_graphics'

Change-Id: I735fa6413128cb9c17d99dfe9ffc3ee93ede51ae
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49597
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
diff --git a/src/northbridge/intel/i945/raminit.c b/src/northbridge/intel/i945/raminit.c
index a1a9a9c..acb009f 100644
--- a/src/northbridge/intel/i945/raminit.c
+++ b/src/northbridge/intel/i945/raminit.c
@@ -2124,6 +2124,9 @@
 	int integrated_graphics = 1;
 	int i;
 
+	if (!(pci_read_config8(HOST_BRIDGE, DEVEN) & (DEVEN_D2F0 | DEVEN_D2F1)))
+		integrated_graphics = false;
+
 	reg32 = MCHBAR32(C0DRT2);
 	reg32 &= 0xffffff00;
 	/* Idle timer = 8 clocks, CKE idle timer = 16 clocks */