kernel: delete Linux 5.4 config and patches

As the upcoming release will be based on Linux 5.10 only, remove all
kernel configuration as well as patches for Linux 5.4.
There were no targets still actively using Linux 5.4.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit 3a14580411adfb75f9a44eded9f41245b9e44606)

1 files changed, 0 insertions, 58 deletions

diff --git a/target/linux/layerscape/patches-5.4/902-layerscape_improve_support_of_LS1012A-FRDM.patch b/target/linux/layerscape/patches-5.4/902-layerscape_improve_support_of_LS1012A-FRDM.patch
deleted file mode 100644
index 62edf43a35..0000000000
--- a/target/linux/layerscape/patches-5.4/902-layerscape_improve_support_of_LS1012A-FRDM.patch
+++ /dev/null
@@ -1,58 +0,0 @@
-From 12de4b5e7cbcd193d5abb753ca511fe8f2236846 Mon Sep 17 00:00:00 2001
-From: Pawel Dembicki <paweldembicki@gmail.com>
-Date: Fri, 13 Nov 2020 07:30:03 +0100
-Subject: [PATCH 2/2] arm64: dts: fsl-ls1012a-frdm: add spi-uart device
-
-This patch adds spi-uart controller  to LS1012A-FRDM board dts.
-Device is equipped in SC16IS740 from NXP.
-
-Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
----
- .../boot/dts/freescale/fsl-ls1012a-frdm.dts   | 21 +++++++++++++++++++
- 1 file changed, 21 insertions(+)
-
---- a/arch/arm64/boot/dts/freescale/fsl-ls1012a-frdm.dts
-+++ b/arch/arm64/boot/dts/freescale/fsl-ls1012a-frdm.dts
-@@ -7,6 +7,7 @@
-  */
- /dts-v1/;
- 
-+#include <dt-bindings/interrupt-controller/irq.h>
- #include "fsl-ls1012a.dtsi"
- 
- / {
-@@ -16,6 +17,7 @@
- 	aliases {
- 		ethernet0 = &pfe_mac0;
- 		ethernet1 = &pfe_mac1;
-+		serial0 = &duart0;
- 	};
- 
- 	sys_mclk: clock-mclk {
-@@ -61,6 +63,26 @@
- 		};
- 	};
- };
-+
-+&dspi {
-+	status = "okay";
-+	bus-num = <0>;
-+
-+	serial@0 {
-+		reg = <0>;
-+		compatible = "nxp,sc16is740";
-+		spi-max-frequency = <4000000>;
-+		clocks = <&sc16is7xx_clk>;
-+		interrupt-parent = <&gpio1>;
-+		interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
-+
-+		sc16is7xx_clk: sc16is7xx_clk {
-+			compatible = "fixed-clock";
-+			#clock-cells = <0>;
-+			clock-frequency = <24000000>;
-+		};
-+	};
-+};
- 
- &duart0 {
- 	status = "okay";