From: Andreas Ziegler <github@andreas-ziegler.de>
Date: Thu, 3 Aug 2017 03:34:19 +0200
Subject: add CONFIG_GPIO_74X164 and CONFIG_SPI_GPIO for Archer C25

backport from e39dc8d823c86559eedbbdcee5f5c14b827fed0f
introduced for Archer C59/C60

Based-on-patch-by: Henryk Heisig <hyniu@o2.pl>
Signed-off-by: Andreas Ziegler <github@andreas-ziegler.de>

diff --git a/target/linux/ar71xx/config-4.4 b/target/linux/ar71xx/config-4.4
index d1d879cd764259571cce2a5e091ae99f0d7a6d6d..e576fd2ec4f0a8d3613f00aa0a29586b8c65abe0 100644
--- a/target/linux/ar71xx/config-4.4
+++ b/target/linux/ar71xx/config-4.4
@@ -273,6 +273,7 @@ CONFIG_GENERIC_TIME_VSYSCALL=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIOLIB_IRQCHIP=y
 CONFIG_GPIO_DEVRES=y
+CONFIG_GPIO_74X164=y
 # CONFIG_GPIO_LATCH is not set
 CONFIG_GPIO_NXP_74HC153=y
 CONFIG_GPIO_PCF857X=y
@@ -430,6 +431,7 @@ CONFIG_SOC_QCA956X=y
 CONFIG_SPI=y
 CONFIG_SPI_ATH79=y
 CONFIG_SPI_BITBANG=y
+CONFIG_SPI_GPIO=y
 CONFIG_SPI_MASTER=y
 # CONFIG_SPI_RB4XX is not set
 # CONFIG_SPI_VSC7385 is not set