[meta-freescale] [meta-fsl-arm][PATCH] linux-ls1: add support for kernel configuration fragments

[Zongchun.Yu at freescale.com]

>>> -inherit kernel fsl-kernel-localversion
>>
>> Why?
>>
>> [Zongchun]Regarding kernel class. a new file named linux-yocto.inc is included in the following lines. This file has already inherited kernel class.
>> Regarding fsl-kernel-localversion class. After including 
>> linux-yocto.inc. the .config is generated in kernel_configme task which is before configure task. So the blocks in fsl-kernel-localversion class are not the same with Linux recipe.

>So we ought to fix the class to work in both ways and avoid duplicating this code.
[Zongchun]Maybe we can move the blocks to kernel-yocto.bbclass in poky. So both arm and ppc can use this code in future.