1. 原kernel/common目录下属于内核拓展组件，统一移入kernel/extend管理
2. Kconfig分层，各模块自己的配置放到自己目录下管理
3. 原platform下不属于平台的公共代码抽到kernel/common下，只留板级链接脚本和一些编译脚本指向device目录下触发平台相关的编译
4. 对外公共头文件统一抽到对外include路径
5. 废弃宏，头文件清理

close: #I48KI4
Signed-off-by: Narvinzzz <zhaotianyu9@huawei.com>
Change-Id: I0cf5ea81c92a8fa7b113da9cbdc8b7bc935f5aae

Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: Ibf8df58696b7f1ccb3b5b21154c3b94dda1e8ad2

remove some unused Makefile code and optimize some code
Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: I1c31d07481bb6aee47b0c51d63d6b68316c38c88

add BUILD.gn for all kernel modules
Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: I018446427bf64615f2596d47862b219659b58b34

1、bootargs解析与rootfs挂载进行解耦；
2、支持开发者自定义bootargs参数，内核存储bootargs中所有参数；
3、开发者可获取bootargs中的参数内容，并自行解析。

close #I41CL8

Change-Id: If384476714854ba0cf64eb70b785eb26737dd3d2
Signed-off-by: Nchenjing <chenjing139@huawei.com>

Change-Id: I052d930d54e63179b17b77f02c107a015f3cfc3f

Description: platform directory refactoring
Sig: kernel
Feature or Bugfix: Feature
Binary Source: No

Description: platform directory refactoring
Sig: kernel
Feature or Bugfix: Feature
Binary Source: No

High resolution timer can now be excluded from the build.
There is currently no HR Timer implementation for other
platform than HiSi.

Note: HR Timer will be enabled by default
Signed-off-by: NZbigniew Bodek <zbigniew.bodek@huawei.com>
Change-Id: I5daf8e0ceec2a17025b579513e3bd74db1040916

Fix build when BASE_CORE_HILOG option is disabled.
Use similar printing function to output missing HILOG
logs.
Signed-off-by: NZbigniew Bodek <zbigniew.bodek@huawei.com>
Change-Id: Id5c63568ccb1ba90daadddf7e26d3e0f6c9f30ce

Remove some dependencies on HiSilicon and add new platform to build.
Signed-off-by: NZbigniew Bodek <zbigniew.bodek@huawei.com>
Change-Id: I8504bcc9a1bf1756e1e20694986d7774156f8b8e

Change-Id: Ia6c1f6302407a707b3ec9b805f4c92d8a7970b86