arm64: dts: exynos: Add SPDX license identifiers

Replace GPL v2.0 license statements with SPDX license identifiers.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

arm64: dts: exynos: Add TMU node for exynos7

This patch adds TMU node, related temprature sensor and triping
point data for Atlas cpu core found on exynos7 SoC.

Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>