tests: use crlf=yes attribute more

To make special newlines more explicit and visible.
Mostly in `<protocol>` sections, some in `<data*>` and `<upload>`.

Reducing the number of `tests/data/test*`:
- CRLF newlines from 21535 to 11337.
- files with mixed newlines from 1335 to 707.

Also delete empty `<protocol>` sections.

Closes #19284

tests/data/test1801

@@ -49,15 +49,15 @@ http://%HOSTIP:%HTTPPORT/%TESTNUMBER --http2
 </client>
 
 <verify>
-<protocol>
-GET /%TESTNUMBER HTTP/1.1
-Host: %HOSTIP:%HTTPPORT
-User-Agent: curl/%VERSION
-Accept: */*
-Connection: Upgrade, HTTP2-Settings
-Upgrade: %H2CVER
-HTTP2-Settings: AAMAAABkAARAAAAAAAIAAAAA
-
+<protocol crlf="yes">
+GET /%TESTNUMBER HTTP/1.1
+Host: %HOSTIP:%HTTPPORT
+User-Agent: curl/%VERSION
+Accept: */*
+Connection: Upgrade, HTTP2-Settings
+Upgrade: %H2CVER
+HTTP2-Settings: AAMAAABkAARAAAAAAAIAAAAA
+
 </protocol>
 # CURLE_HTTP2: Send failure: Broken pipe
 <errorcode>