realtek: 6.6: copy patch 304-spi-update-dependency-for-spi-realtek-rtl

Copy the patch file to 6.6

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>

target/linux/realtek/patches-6.6/304-spi-update-dependency-for-spi-realtek-rtl.patch

@@ -0,0 +1,25 @@
+From 0b000cbfe0aa0323bffa855ef8449c0687a4c071 Mon Sep 17 00:00:00 2001
+From: INAGAKI Hiroshi <musashino.open@gmail.com>
+Date: Thu, 6 May 2021 19:30:58 +0900
+Subject: realtek: backport spi-realtek-rtl driver from 5.12 to 5.10
+
+This patch backports "spi-realtek-rtl" driver to Kernel 5.10 from 5.12.
+"MACH_REALTEK_RTL" is used as a platform name in upstream, but "RTL838X"
+is used in OpenWrt, so update the dependency by the additional patch.
+
+Submitted-by: INAGAKI Hiroshi <musashino.open@gmail.com>
+---
+ drivers/spi/Makefile                          |  2 +-
+ 1 files changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/spi/Makefile
++++ b/drivers/spi/Makefile
+@@ -97,7 +97,7 @@ obj-$(CONFIG_SPI_QUP)			+= spi-qup.o
+ obj-$(CONFIG_SPI_ROCKCHIP)		+= spi-rockchip.o
+ obj-$(CONFIG_SPI_ROCKCHIP_SFC)		+= spi-rockchip-sfc.o
+ obj-$(CONFIG_SPI_RB4XX)			+= spi-rb4xx.o
+-obj-$(CONFIG_MACH_REALTEK_RTL)		+= spi-realtek-rtl.o
++obj-$(CONFIG_RTL83XX)			+= spi-realtek-rtl.o
+ obj-$(CONFIG_SPI_RPCIF)			+= spi-rpc-if.o
+ obj-$(CONFIG_SPI_RSPI)			+= spi-rspi.o
+ obj-$(CONFIG_SPI_S3C24XX)		+= spi-s3c24xx-hw.o