ltp-guf-test: fixed line-endings for setup script (refs #39957)

* the new @sanvito-custom-setup.sh@ script was accidently commited with Windows line-breaks. Fixed now.

Change-Id: I5e855c26cf8ac82313155e945802cf0361e8c696

runtest/sanvito-custom-setup.sh

-# setup-steps to execute before using "sanvito-custom"
-# This script must be started with "sourch sanvit-custom-setup.sh" to work properly
-ln -s /usr/lib/libGL.so.1.2.0 /opt/lib/libGL.so.1.2
-export PATH=$PATH:/opt/ltp/testcases/bin
-export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/lib
-export DISPLAY=:0
-ubus call board enable '{"name": "usb"}'; mount -o remount,rw /tmp/E26F-BE71;
+# setup-steps to execute before using "sanvito-custom"
+# This script must be started with "sourch sanvit-custom-setup.sh" to work properly
+ln -s /usr/lib/libGL.so.1.2.0 /opt/lib/libGL.so.1.2
+export PATH=$PATH:/opt/ltp/testcases/bin
+export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/lib
+export DISPLAY=:0
+ubus call board enable '{"name": "usb"}'; mount -o remount,rw /tmp/E26F-BE71;