arm64: dts: bcmbca: update BCM4908 board dts files

Append "brcm,bcmbca" to compatible strings based on the new bcmbca
binding rule for BCM4908 family based boards.
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Acked-by: Rafał Miłecki <rafal@milecki.pl>
Link: https://lore.kernel.org/r/20220803175455.47638-4-william.zhang@broadcom.comSigned-off-by: Florian Fainelli <f.fainelli@gmail.com>

arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts

@@ -7,7 +7,7 @@
 #include "bcm4906.dtsi"
 
 / {
-	compatible = "netgear,r8000p", "brcm,bcm4906", "brcm,bcm4908";
+	compatible = "netgear,r8000p", "brcm,bcm4906", "brcm,bcm4908", "brcm,bcmbca";
 	model = "Netgear R8000P";
 
 	memory@0 {

arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-tplink-archer-c2300-v1.dts

@@ -7,7 +7,7 @@
 #include "bcm4906.dtsi"
 
 / {
-	compatible = "tplink,archer-c2300-v1", "brcm,bcm4906", "brcm,bcm4908";
+	compatible = "tplink,archer-c2300-v1", "brcm,bcm4906", "brcm,bcm4908", "brcm,bcmbca";
 	model = "TP-Link Archer C2300 V1";
 
 	memory@0 {

arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts

@@ -6,7 +6,7 @@
 #include "bcm4908.dtsi"
 
 / {
-	compatible = "asus,gt-ac5300", "brcm,bcm4908";
+	compatible = "asus,gt-ac5300", "brcm,bcm4908", "brcm,bcmbca";
 	model = "Asus GT-AC5300";
 
 	memory@0 {

arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-netgear-raxe500.dts

@@ -3,7 +3,7 @@
 #include "bcm4908.dtsi"
 
 / {
-	compatible = "netgear,raxe500", "brcm,bcm4908";
+	compatible = "netgear,raxe500", "brcm,bcm4908", "brcm,bcmbca";
 	model = "Netgear RAXE500";
 
 	memory@0 {