Samsung pinctrl patches for v3.19

1) pinctrl-samsung data structure clean-up

8100cf4 pinctrl: samsung: Separate per-bank init and runtime data
1bf00d7 pinctrl: samsung: Constify samsung_pin_ctrl struct
94ce944 pinctrl: samsung: Constify samsung_pin_bank_type struct
e06deff pinctrl: samsung: Drop unused label field in samsung_pin_ctrl struct
8799327 pinctrl: samsung: Make samsung_pinctrl_get_soc_data use ERR_PTR()

2) pinctrl-samsung Exynos7 support

50cea0c pinctrl: exynos: Add initial driver data for Exynos7
14c255d pinctrl: exynos: Add irq_chip instance for Exynos7 wakeup interrupts
6f5e41b pinctrl: exynos: Consolidate irq domain callbacks
0d3d30d pinctrl: exynos: Generalize the eint16_31 demux code

3) pinctrl-samsung Exynos4415 support

2891ba2 pinctrl: exynos: Add support for Exynos4415
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