Exynos initialization code now relies on obtaining the PMU address,
so prepare a PMU node for Exynos5410.

Fixes: fce9e5bb ("ARM: EXYNOS: Add support for mapping PMU base
address via DT")
Signed-off-by: NAndreas Faerber <afaerber@suse.de>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

It's 1.6 GHz for the Cortex-A15.

Avoids warnings like "/cpus/cpu@0 missing clock-frequency property".
Signed-off-by: NAndreas Faerber <afaerber@suse.de>
Reviewed-by: NTarek Dakhran <t.dakhran@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Add initial device tree nodes for EXYNOS5410 SoC and SMDK5410 board.
Signed-off-by: NTarek Dakhran <t.dakhran@samsung.com>
Signed-off-by: NVyacheslav Tyrtov <v.tyrtov@samsung.com>
Reviewed-by: NTomasz Figa <t.figa@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>