[][Change mt7981 mtk hwrng default disabled]

[Description]
Change nt7981 mtk hwrng default disabled

[Release-log]
N/A

Change-Id: I10125eaff7f072020d31830b31d8d1caf155887c
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/5483291
diff --git a/target/linux/mediatek/mt7981/config-5.4 b/target/linux/mediatek/mt7981/config-5.4
index 079cecc..5134690 100644
--- a/target/linux/mediatek/mt7981/config-5.4
+++ b/target/linux/mediatek/mt7981/config-5.4
@@ -216,7 +216,7 @@
 CONFIG_HOTPLUG_CPU=y
 # CONFIG_HW_NAT is not set
 CONFIG_HW_RANDOM=y
-CONFIG_HW_RANDOM_MTK=y
+# CONFIG_HW_RANDOM_MTK is not set
 CONFIG_HZ=250
 CONFIG_HZ_250=y
 CONFIG_I2C=y