[sdk] Fix yaml data root for Android sdk cipd packages

The current .yaml files are wrapping duplicate directory names like
'public/tools', which cause downloaded packages as
'public/public/tools'. This cl fixed that issue by add the root
directory info to yaml files.

TBR=jbudorick@chromium.org

Bug: 659808
Change-Id: I3be84d33cff2974c7bea481349aef04a45b9548f
Reviewed-on: https://chromium-review.googlesource.com/1013389
Commit-Queue: Shenghua Zhang <shenghuazhang@chromium.org>
Reviewed-by: Shenghua Zhang <shenghuazhang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#551124}

third_party/android_sdk/cipd_build-tools.yaml

@@ -6,5 +6,6 @@
 # cipd create --pkg-def cipd_build-tools.yaml -tag version:$version
 package: chromium/third_party/android_sdk/public/build-tools
 description: build-tools Android SDK Build Tools
+root: public/
 data:
-  - dir: public/build-tools
+  - dir: build-tools
\ No newline at end of file

third_party/android_sdk/cipd_emulator.yaml

@@ -6,5 +6,6 @@
 # cipd create --pkg-def cipd_emulator.yaml -tag version:$version
 package: chromium/third_party/android_sdk/public/emulator
 description: emulator Android SDK Emulator library
+root: public/
 data:
-  - dir: public/emulator
+  - dir: emulator
\ No newline at end of file

third_party/android_sdk/cipd_extras.yaml

@@ -6,5 +6,6 @@
 # cipd create --pkg-def cipd_extras.yaml -tag version:$version
 package: chromium/third_party/android_sdk/public/extras
 description: extras Android SDK Extras library
+root: public/
 data:
-  - dir: public/extras
+  - dir: extras
\ No newline at end of file

third_party/android_sdk/cipd_platform-tools.yaml

@@ -6,5 +6,6 @@
 # cipd create --pkg-def cipd_platform-tools.yaml -tag version:$version
 package: chromium/third_party/android_sdk/public/platform-tools
 description: platform-tools Android SDK Platform-tools library
+root: public/
 data:
-  - dir: public/platform-tools
+  - dir: platform-tools
\ No newline at end of file

third_party/android_sdk/cipd_platforms.yaml

@@ -6,5 +6,6 @@
 # cipd create --pkg-def cipd_platform.yaml -tag version:$version
 package: chromium/third_party/android_sdk/public/platforms
 description: platforms Android SDK Platforms library
+root: public/
 data:
-  - dir: public/platforms
+  - dir: platforms
\ No newline at end of file

third_party/android_sdk/cipd_sources.yaml

@@ -6,5 +6,6 @@
 # cipd create --pkg-def cipd_sources.yaml -tag version:$version
 package: chromium/third_party/android_sdk/sources
 description: sources Android SDK Sources library
+root: sources/
 data:
-  - dir: sources/sources
+  - dir: sources
\ No newline at end of file

third_party/android_sdk/cipd_tools.yaml

@@ -6,5 +6,6 @@
 # cipd create --pkg-def cipd_tools.yaml -tag version:$version
 package: chromium/third_party/android_sdk/public/tools
 description: tools Android SDK Tools library
+root: public/
 data:
-  - dir: public/tools
+  - dir:tools
\ No newline at end of file