ARM: dts: stm32: fix hash1 dmas property on stm32mp157c

mdma1 #dma-cells is <6>, so, remove unused extra parameter in hash1 dmas
property.

Change-Id: I34902b107c6539ab30ada6f67dd0bac20e3c455d
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Reviewed-on: https://gerrit.st.com/c/mpu/oe/st/linux-stm32/+/141749
Reviewed-by: CITOOLS <smet-aci-reviews@lists.codex.cro.st.com>
Reviewed-by: CIBUILD <smet-aci-builds@lists.codex.cro.st.com>
Reviewed-by: Lionel DEBIEVE <lionel.debieve@st.com>
Reviewed-by: Alexandre TORGUE <alexandre.torgue@st.com>
Tested-by: Lionel DEBIEVE <lionel.debieve@st.com>

Author: ADESTM

arch/arm/boot/dts/stm32mp157c.dtsi

@@ -1662,7 +1662,7 @@
 			interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&rcc HASH1>;
 			resets = <&rcc HASH1_R>;
-			dmas = <&mdma1 31 0x10 0x1000A02 0x0 0x0 0x0 0x0>;
+			dmas = <&mdma1 31 0x10 0x1000A02 0x0 0x0 0x0>;
 			dma-names = "in";
 			dma-maxburst = <2>;
 			status = "disabled";