clk: davinci: fix a typo (which leads to build failures)

This should have been DM365, not DM356.

Fixes: 4eff0beb ("clk: davinci: Fix link errors when not all SoCs are enabled")
Cc: stable@vger.kernel.org
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: David Lechner <david@lechnology.com>