[2.6 patch] sata_fsl.c: fix 8315DS workaround

[Adrian Bunk]

Commit e7eac96e8f0e57a6e9f94943557bc2b23be31471 (ata/sata_fsl: Move 
MPC8315DS link speed limit workaround to specific ifdef) aimed at 
limiting the workaround only to the affected hardware, but since the 
#ifdef used a nonexisting kconfig variable it actually killed
the workaround.

Reported-by: Robert P. J. Day <rpjday at crashcourse.ca>
Signed-off-by: Adrian Bunk <bunk at kernel.org>

---
cd54dd8b6a8bca44ead212d12fe116702cc31ed7 
diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index 3924e72..45878ef 100644
--- a/drivers/ata/sata_fsl.c
+++ b/drivers/ata/sata_fsl.c
@@ -640,7 +640,7 @@ static int sata_fsl_port_start(struct ata_port *ap)
 	VPRINTK("HControl = 0x%x\n", ioread32(hcr_base + HCONTROL));
 	VPRINTK("CHBA  = 0x%x\n", ioread32(hcr_base + CHBA));
 
-#ifdef CONFIG_MPC8315_DS
+#ifdef CONFIG_MPC831x_RDB
 	/*
 	 * Workaround for 8315DS board 3gbps link-up issue,
 	 * currently limit SATA port to GEN1 speed