bcm4908: use accepted 5.13 DTS patches

Some patches were slightly cleaned up. One things worth mentioning is
that adding:
phy-mode = "rgmii"
broke SF2 driver. It made it access random register breaking switch
setup.

That's why this commit also adds a quick sf2 fix.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
(cherry picked from commit 05dbfe616d551bce1a19d3846c8949c047325624)

1 files changed, 50 insertions, 0 deletions

diff --git a/target/linux/bcm4908/patches-5.4/032-v5.13-0003-arm64-dts-broadcom-bcm4908-describe-Netgear-R8000P-s.patch b/target/linux/bcm4908/patches-5.4/032-v5.13-0003-arm64-dts-broadcom-bcm4908-describe-Netgear-R8000P-s.patch
new file mode 100644
index 0000000000..9c7f9cee6c
--- /dev/null
+++ b/target/linux/bcm4908/patches-5.4/032-v5.13-0003-arm64-dts-broadcom-bcm4908-describe-Netgear-R8000P-s.patch
@@ -0,0 +1,50 @@
+From 406e98afffe975982f63ea5d21bf9a47a81b56ee Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Fri, 19 Feb 2021 06:50:28 +0100
+Subject: [PATCH] arm64: dts: broadcom: bcm4908: describe Netgear R8000P switch
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+R8000P model has 4 LAN ports and 1 WAN port.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ .../bcm4908/bcm4906-netgear-r8000p.dts        | 25 +++++++++++++++++++
+ 1 file changed, 25 insertions(+)
+
+--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts
++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts
+@@ -43,6 +43,31 @@
+ 	status = "okay";
+ };
+ 
++&ports {
++	port@0 {
++		label = "lan4";
++	};
++
++	port@1 {
++		label = "lan3";
++	};
++
++	port@2 {
++		label = "lan2";
++	};
++
++	port@3 {
++		label = "lan1";
++	};
++
++	port@7 {
++		reg = <7>;
++		phy-mode = "internal";
++		phy-handle = <&phy12>;
++		label = "wan";
++	};
++};
++
+ &nandcs {
+ 	nand-ecc-strength = <4>;
+ 	nand-ecc-step-size = <512>;