feat(rcar3): enable the stack protection

This commit changes ENABLE_STACK_PROTECTOR value to "strong" for
enabling the stack protector by canary.

Signed-off-by: Koichi Yamaguchi <koichi.yamaguchi.zb@hitachi.com>
Signed-off-by: Toshiyuki Ogasahara <toshiyuki.ogasahara.bo@hitachi.com>
Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
Change-Id: Ice351d23c98daf12737a5e65cef743035d62dabe
2 files changed