hikey: Update kernel to 4.9.48, 4.4.87 and 3.18.70 and enable watchdog support am: d194dc591a am: b6a77bc3d4
am: 41f1abbe5a

Change-Id: I808183a9c9b0e41d9ba34be2058b6ebf0ec41a0a
diff --git a/Image-dtb-3.18 b/Image-dtb-3.18
index 0c198fb..ba0772a 100644
--- a/Image-dtb-3.18
+++ b/Image-dtb-3.18
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diff --git a/Image-dtb-4.4 b/Image-dtb-4.4
index d522a25..08a6bb7 100644
--- a/Image-dtb-4.4
+++ b/Image-dtb-4.4
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diff --git a/Image-dtb-4.9 b/Image-dtb-4.9
index c302ee4..e2e5d6b 100644
--- a/Image-dtb-4.9
+++ b/Image-dtb-4.9
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diff --git a/hi6220-hikey.dtb-3.18 b/hi6220-hikey.dtb-3.18
index 10cd87a..3c8acef 100644
--- a/hi6220-hikey.dtb-3.18
+++ b/hi6220-hikey.dtb-3.18
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diff --git a/hi6220-hikey.dtb-4.4 b/hi6220-hikey.dtb-4.4
index 100d920..f0ab096 100644
--- a/hi6220-hikey.dtb-4.4
+++ b/hi6220-hikey.dtb-4.4
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diff --git a/hi6220-hikey.dtb-4.9 b/hi6220-hikey.dtb-4.9
index c5d23a8..051f941 100644
--- a/hi6220-hikey.dtb-4.9
+++ b/hi6220-hikey.dtb-4.9
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