[][openwrt][mt7988][crypto][Refactor to unify EIP driver]

[Description]
Refactor to unify EIP driver.
1. Sync CAPWAP-DTLS functions for TOPS from neptune/eip_driver
2. Decoupled with hnat, IPSec inline mode is available even when hnat is
not activated now.

[Release-log]
N/A


Change-Id: Id53b483924fb90bc784570545b37e67e860a6024
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/8868628
diff --git a/feed/kernel/crypto-eip/src/Makefile b/feed/kernel/crypto-eip/src/Makefile
index d09ede3..77f6750 100644
--- a/feed/kernel/crypto-eip/src/Makefile
+++ b/feed/kernel/crypto-eip/src/Makefile
@@ -16,5 +16,6 @@
 crypto-eip-inline-y += lookaside-hash.o
 
 crypto-eip-inline-$(CONFIG_CRYPTO_XFRM_OFFLOAD_MTK_PCE) += xfrm-offload.o
+crypto-eip-inline-$(CONFIG_MTK_TOPS_CAPWAP_DTLS) += capwap-dtls-offload.o
 
 include $(wildcard $(src)/*.mk)