[bsp][stm32/libraries]修改各个系列下的sconscript文件，默认添加 stm32xxxx_hal_gpio.c

更新版权信息。

Update copyright information.
Signed-off-by: NZhou Yanjie <zhouyanjie@zoho.com>

当ELF文件包含很多gnu_extab*开头的section时(>100)，会导致GDB在加载操作
时崩溃。通过创建一个section来对以该名称开头的所有section进行分组可以
解决该问题。

When ELF contains many sectios(>100) starting with name gnu_extab*,
will causing GDB to crash on load action. Solving the problem by
creating a section to group all sections which begin with that name.
Signed-off-by: NZhou Yanjie <zhouyanjie@zoho.com>

添加版权信息。

Add copyright information.
Signed-off-by: NZhou Yanjie <zhouyanjie@zoho.com>

根据配置选择是否对LCD或触摸屏进行复位,在未使用LCD或触摸屏时可缩短
系统初始化时间。

Select whether to reset the LCD or touchpad according to the
configuration, and shorten the system initialization time
when the LCD or touchpad is not used.
Signed-off-by: NZhou Yanjie <zhouyanjie@zoho.com>

更新版权信息。

Update copyright information.
Signed-off-by: NZhou Yanjie <zhouyanjie@zoho.com>

修复MMC DMA破坏中断向量内存位置的问题，因为这里没有其他链接描述符。
在程序较小时该问题不容易出现，因为此时中断向量保留在缓存中。

Fix for MMC DMA corrupting interrupt vectors' memory location since
there is no other link descriptor. This is not noticeable if the
program is small, because the interrupt vectors stay in cache.
Signed-off-by: NZhou Yanjie <zhouyanjie@zoho.com>

清理内容重复的头文件。

Clean up duplicate header files.
Signed-off-by: NZhou Yanjie <zhouyanjie@zoho.com>

2. 修改README.md中错误的描述

2. 去掉了一些不用的文件
3. 修复了board下SConscript脚本中不合理的地方