selftests: pstore: Adding config fragment CONFIG_PSTORE_RAM=m

pstore_tests and pstore_post_reboot_tests need CONFIG_PSTORE_RAM=m
Signed-off-by: NNaresh Kamboju <naresh.kamboju@linaro.org>
Acked-by: NKees Cook <keescook@chromium.org>
Signed-off-by: NShuah Khan <shuahkh@osg.samsung.com>

tools/testing/selftests/pstore/config

@@ -2,3 +2,4 @@ CONFIG_MISC_FILESYSTEMS=y
 CONFIG_PSTORE=y
 CONFIG_PSTORE_PMSG=y
 CONFIG_PSTORE_CONSOLE=y
+CONFIG_PSTORE_RAM=m