[E81][DTS] Add baseboard to devicetree sources

Rename the B79 include file and also add the file -b79 file extension to
the base devicetrees.

arch/arm64/boot/dts/seco/Makefile

 # SPDX-License-Identifier: GPL-2.0
-dtb-$(CONFIG_ARCH_QCOM)	+= seco-qcs6490-e81.dtb
-dtb-$(CONFIG_ARCH_QCOM)	+= seco-qcs5430-fp1-e81.dtb
-dtb-$(CONFIG_ARCH_QCOM)	+= seco-qcs5430-fp2-e81.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= seco-qcs6490-e81-b79.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= seco-qcs5430-fp1-e81-b79.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= seco-qcs5430-fp2-e81-b79.dtb

arch/arm64/boot/dts/seco/include/e81-b79.dtsi → arch/arm64/boot/dts/seco/include/baseboard-e81-b79.dtsi

@@ -8,8 +8,8 @@
  *
  *****************************************************************************/
 
-#ifndef SECO_B79_DTSI
-#define SECO_B79_DTSI
+#ifndef BASEBOARD_E81_B79_DTSI
+#define BASEBOARD_E81_B79_DTSI
 
 / {
 	reg_1v8: 1v8 {

arch/arm64/boot/dts/seco/seco-qcs5430-fp1-e81.dts → arch/arm64/boot/dts/seco/seco-qcs5430-fp1-e81-b79.dts

@@ -10,7 +10,7 @@
 /dts-v1/;
 
 #include "include/e81-common.dtsi"
-#include "include/e81-b79.dtsi"
+#include "include/baseboard-e81-b79.dtsi"
 
 / {
 	model = "Qualcomm QCS5430 FP1 SECO board (E81) with B79 baseboard";

arch/arm64/boot/dts/seco/seco-qcs5430-fp2-e81.dts → arch/arm64/boot/dts/seco/seco-qcs5430-fp2-e81-b79.dts

@@ -10,7 +10,7 @@
 /dts-v1/;
 
 #include "include/e81-common.dtsi"
-#include "include/e81-b79.dtsi"
+#include "include/baseboard-e81-b79.dtsi"
 
 / {
 	model = "Qualcomm QCS5430 FP2 SECO board (E81) with B79 baseboard";

arch/arm64/boot/dts/seco/seco-qcs6490-e81.dts → arch/arm64/boot/dts/seco/seco-qcs6490-e81-b79.dts

@@ -10,7 +10,7 @@
 /dts-v1/;
 
 #include "include/e81-common.dtsi"
-#include "include/e81-b79.dtsi"
+#include "include/baseboard-e81-b79.dtsi"
 
 / {
 	model = "Qualcomm QCS6490 SECO board (E81) with B79 baseboard";