soc/mediatek: Move common definition of DFD to common folder

We use the same dump address and size for DFD in all MediaTek SoCs, so
we move them to dfd_common.h and rename dfd_common.h to dfd.h.

TEST=build pass
BUG=b:236331724

Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Change-Id: I162bbb0a82e3b55c8cfbbd20e28a54ad01fd6b0d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66585
Reviewed-by: Yidi Lin <yidilin@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/mediatek/common/include/soc/dfd.h

@@ -6,6 +6,10 @@
 #define CPC_FLOW_CTRL_CFG	0x0C53A814
 #define RESET_ON_KEEP_EN	BIT(17)
 
+/* DFD dump address and size need to be the same as defined in Kernel DTS. */
+#define DFD_DUMP_ADDRESS        0x6A000000
+#define DFD_DUMP_SIZE           (1 * MiB)
+
 static u32 *const dfd_cfg = (void *)CPC_FLOW_CTRL_CFG;
 
 void dfd_init(void);

src/soc/mediatek/mt8186/include/soc/dfd.h

@@ -1,12 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-#ifndef SOC_MEDIATEK_MT8186_DFD_H
-#define SOC_MEDIATEK_MT8186_DFD_H
-
-#include <soc/dfd_common.h>
-
-/* DFD dump address and size need to be the same as defined in Kernel DTS. */
-#define DFD_DUMP_ADDRESS	0x6A000000
-#define DFD_DUMP_SIZE		(1 * MiB)
-
-#endif

src/soc/mediatek/mt8192/include/soc/dfd.h

@@ -1,12 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-#ifndef SOC_MEDIATEK_MT8192_DFD_H
-#define SOC_MEDIATEK_MT8192_DFD_H
-
-#include <soc/dfd_common.h>
-
-/* DFD dump address and size need to be the same as defined in Kernel DTS. */
-#define DFD_DUMP_ADDRESS	0x6A000000
-#define DFD_DUMP_SIZE		(1 * MiB)
-
-#endif

src/soc/mediatek/mt8195/include/soc/dfd.h

@@ -1,12 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-#ifndef SOC_MEDIATEK_MT8195_DFD_H
-#define SOC_MEDIATEK_MT8195_DFD_H
-
-#include <soc/dfd_common.h>
-
-/* DFD dump address and size need to be the same as defined in Kernel DTS. */
-#define DFD_DUMP_ADDRESS	0x6A000000
-#define DFD_DUMP_SIZE		(1 * MiB)
-
-#endif