[Feature][ZXW-88]merge P50 version

Only Configure: No
Affected branch: master
Affected module: unknown
Is it affected on both ZXIC and MTK: only ZXIC
Self-test: Yes
Doc Update: No

Change-Id: I34667719d9e0e7e29e8e4368848601cde0a48408
diff --git a/ap/lib/libcurl/curl-7.86.0/docs/cmdline-opts/ftp-alternative-to-user.d b/ap/lib/libcurl/curl-7.86.0/docs/cmdline-opts/ftp-alternative-to-user.d
new file mode 100755
index 0000000..22e5b4f
--- /dev/null
+++ b/ap/lib/libcurl/curl-7.86.0/docs/cmdline-opts/ftp-alternative-to-user.d
@@ -0,0 +1,16 @@
+c: Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
+SPDX-License-Identifier: curl
+Long: ftp-alternative-to-user
+Arg: <command>
+Help: String to replace USER [name]
+Protocols: FTP
+Added: 7.15.5
+Category: ftp
+Example: --ftp-alternative-to-user "U53r" ftp://example.com
+See-also: ftp-account user
+Multi: single
+---
+If authenticating with the USER and PASS commands fails, send this command.
+When connecting to Tumbleweed's Secure Transport server over FTPS using a
+client certificate, using "SITE AUTH" will tell the server to retrieve the
+username from the certificate.