tests/fate.sh: report different status for different errors

The order of error codes will be useful in my future fateserver patches.
Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

tests/fate.sh

@@ -111,8 +111,8 @@ echo ${version} >version-$slot
 rm -rf "${build}" *.log
 mkdir -p ${build}
 
-configure >configure.log 2>&1 || fail $? "error configuring"
-compile   >compile.log   2>&1 || fail $? "error compiling"
-fate      >test.log      2>&1 || fail $? "error testing"
+configure >configure.log 2>&1 || fail 3 "error configuring"
+compile   >compile.log   2>&1 || fail 2 "error compiling"
+fate      >test.log      2>&1 || fail 1 "error testing"
 report 0 success
 clean