kselftest: use make -i for the install step

The install target depends on all. Sub-makes rebuild and
fail again even with -o all. Use make -i to ignore errors
so tests that compiled get installed.

Run make all first without -i so the nonfatal path can
detect the failure and report WARNING.

Suggested-by: Ben Copeland <ben.copeland@linaro.org>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>

Author: roxell

tuxmake/target/kselftest-bpf.ini

@@ -7,7 +7,7 @@ description = "Kernel BPF selftest (kselftest)"
 dependencies = kernel headers
 nonfatal = true
 commands = {make} -C tools/testing/selftests/ all
-    && {make} -o all -C tools/testing/selftests/ install
+    && {make} -i -C tools/testing/selftests/ install
     && {tar_caf} {build_dir}/kselftest-bpf.tar{z_ext} -C {build_dir}/kselftest_bpf_install .
 
 [makevars]

tuxmake/target/kselftest.ini

@@ -4,7 +4,7 @@ dependencies = config
 runs_after = kselftest-merge
 nonfatal = true
 commands = {make} -C tools/testing/selftests all
-    && {make} -o all -C tools/testing/selftests install
+    && {make} -i -C tools/testing/selftests install
     && {tar_caf} {build_dir}/kselftest.tar{z_ext} -C {build_dir}/kselftest_install .
 
 [makevars]