ASL: Fix HPBA shadowing.

Store (HPBA, HPBA) had no effect. Rename one of HPBA to avoid shadowing.

Change-Id: I54bfa7bcb3e05c28fe8a257825af56527dbf663e
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: https://review.coreboot.org/13622
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
diff --git a/src/mainboard/lippert/frontrunner-af/dsdt.asl b/src/mainboard/lippert/frontrunner-af/dsdt.asl
index 9e3b39c..5de4310 100644
--- a/src/mainboard/lippert/frontrunner-af/dsdt.asl
+++ b/src/mainboard/lippert/frontrunner-af/dsdt.asl
@@ -1459,8 +1459,8 @@
 						Return(0x0F) /* sata is visible */
 					}
 					Method(_CRS, 0)	{
-						CreateDwordField(CRS, ^HPT._BAS, HPBA)
-						Store(HPBA, HPBA)
+						CreateDwordField(CRS, ^HPT._BAS, HPBX)
+						Store(HPBA, HPBX)
 						Return(CRS)
 					}
 				} /* End Device(_SB.PCI0.LpcIsaBr.COPR) */