kunitconfig: changed namespacing of Kconfigs

Kconfigs now have the namespace prefix KUNIT_* this updates the
kunitconfig to fit that.

Change-Id: I271b010e3a8d168148261f7f6ff84ff164e53419
Signed-off-by: Brendan Higgins <brendanhiggins@google.com>

kunitconfig

diff --git a/kunitconfig b/kunitconfig
index 2e4a4a4..d080842 100644
--- a/kunitconfig
+++ b/kunitconfig
@@ -1,3 +1,3 @@
-CONFIG_TEST=y
-CONFIG_TEST_TEST=y
+CONFIG_KUNIT=y
+CONFIG_KUNIT_TEST=y
 CONFIG_EXAMPLE_TEST=y