dtsi: esp32c3: added missing cell defs

missing address and cell size definition causes
testing failures.

Signed-off-by: Sylvio Alves <sylvio.alves@espressif.com>
diff --git a/dts/riscv/espressif/esp32c3.dtsi b/dts/riscv/espressif/esp32c3.dtsi
index 586a7c2..38c4925 100644
--- a/dts/riscv/espressif/esp32c3.dtsi
+++ b/dts/riscv/espressif/esp32c3.dtsi
@@ -6,6 +6,9 @@
 #include <mem.h>
 
 / {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
 	cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;