[][arm64: defconfig: mt7986: turn on nvmem driver support 4/5]

[Description]
Add nvmem driver support for efuse

[Release-log]
N/A

Change-Id: Ib153d549a276eb2f39f5da3ecd1ba2bb71220a70
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/5579217
diff --git a/target/linux/mediatek/mt7986/config-5.4 b/target/linux/mediatek/mt7986/config-5.4
index 4deec48..0868bc3 100644
--- a/target/linux/mediatek/mt7986/config-5.4
+++ b/target/linux/mediatek/mt7986/config-5.4
@@ -524,3 +524,5 @@
 CONFIG_ZLIB_DEFLATE=y
 CONFIG_ZLIB_INFLATE=y
 CONFIG_ZONE_DMA32=y
+CONFIG_NVMEM=y
+CONFIG_MTK_EFUSE=y