SPI Flash Controller uses multi-function pins, so add missing mux
definition.

Signed-off-by: Igor Prusov <ivprusov@salutedevices.com>
---
 arch/arm64/boot/dts/amlogic/meson-a1.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
index 5c6f93ddf7b4..6cd50187896a 100644
--- a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
@@ -168,6 +168,18 @@ mux {
 						bias-pull-down;
 					};
 				};
+
+				spifc_pins: spifc {
+					mux {
+						groups = "spif_mo",
+							 "spif_mi",
+							 "spif_clk",
+							 "spif_cs",
+							 "spif_hold_n",
+							 "spif_wp_n";
+						function = "spif";
+					};
+				};
 			};
 
 			gpio_intc: interrupt-controller@440 {
-- 
2.34.1