[] [dts: spi: Change tick_delay for spi work safety]

[Description]
Change tick_delay for spi work safety

[Release-log]
N/A

Change-Id: I021207f62c993faa2b0178f8c9d4e7c598486346
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/5978264
diff --git a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a-2500wan-spim-nand-rfb.dts b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a-2500wan-spim-nand-rfb.dts
index b379c2e..4235ce9 100644
--- a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a-2500wan-spim-nand-rfb.dts
+++ b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a-2500wan-spim-nand-rfb.dts
@@ -239,12 +239,12 @@
 		conf-pu {
 			pins = "SPI2_CS", "SPI2_HOLD", "SPI2_WP";
 			drive-strength = <MTK_DRIVE_8mA>;
-			mediatek,pull-up-adv = <0>;	/* bias-disable */
+			bias-pull-up = <MTK_PUPD_SET_R1R0_11>;
 		};
 		conf-pd {
 			pins = "SPI2_CLK", "SPI2_MOSI", "SPI2_MISO";
 			drive-strength = <MTK_DRIVE_8mA>;
-			mediatek,pull-down-adv = <0>;	/* bias-disable */
+			bias-pull-down = <MTK_PUPD_SET_R1R0_11>;
 		};
 	};