Testing rtems 7 using rtems-test

[Joel Sherrill]

Hi

Looks like another place that needs version help. rtems-test has a 6
in it somewhere that needs to be overridden. Notice that it is
invoking sparc-rtems6-sis when I really want sparc-rtems7-sis.
Hopefully there is an existing way to override this easily enough.
Otherwise, we are missing a small but essential piece of really
testing rtems7.

rtems-test --rtems-bsp=leon3-sis `find b-leon3 -name hello.exe`
RTEMS Testing - Tester, 6.0.not_released
 Command Line: /home/joel/rtems-work/tools/7/bin/rtems-test
--rtems-bsp=leon3-sis b-leon3/sparc/leon3/testsuites/samples/hello.exe
 Host: Linux devel.oarcorp.com 3.10.0-1160.41.1.el7.x86_64 #1 SMP Tue
Aug 31 14:52:47 UTC 2021 x86_64
 Python: 2.7.5 (default, Nov 16 2020, 22:23:17) [GCC 4.8.5 20150623
(Red Hat 4.8.5-44)]
Host: Linux-3.10.0-1160.41.1.el7.x86_64-x86_64-with-centos-7.9.2009-Core
(Linux devel.oarcorp.com 3.10.0-1160.41.1.el7.x86_64 #1 SMP Tue Aug 31
14:52:47 UTC 2021 x86_64 x86_64)
[1/1] p:0 f:0 u:0 e:0 I:0 B:0 t:0 L:0 i:0 W:0 | sparc/leon3: hello.exe
[1/1] p:0 f:0 u:0 e:0 I:0 B:0 t:0 L:0 i:0 W:0 | sparc/leon3: hello.exe
Result: invalid
Time: 0:00:00.251304 hello.exe
=>  exe: /home/joel/rtems-work/tools/7/bin/sparc-rtems6-sis -leon3
-nouartrx -r -tlim 200 s -m 4
b-leon3/sparc/leon3/testsuites/samples/hello.exe

--joel