modified the comments of block device geometry structure, to tell everyone the unit of block_size is byte.
update the change logs
Merge pull request #372 from pangweishen/master

update the change logs
support rx62n
add rx62n driver library file
Merge pull request #374 from limxuzheng/master

add a support for rx62n
update RW009 driver: add softAP support.
Merge pull request #375 from aozima/pulls

update RW009 driver: add softAP support.
Merge branch 'master' of github.com:RT-Thread/rt-thread