Simplify the linux-yocto_3.2.bbappend
Simplify the linux-yocto_3.2.bbappend

Using 'COMPATIBLE_MACHINE_qemuarmv7'a instead of just setting
'COMPATIBLE_MACHINE' avoids the need of knowing all the other MACHINEs.
Using 'FILESEXTRAPATHS_prepend :=' instead of 'FILESEXTRAPATHS =.' ensures
immediate expansion. The /${MACHINE} has been removed because bitbake
automatically searches the MACHINE subdirectory.

Signed-off-by: Ken Werner <ae36958ca69fd249ce813d415cd5831a3fb45335@linaro.org>

linaro-home/meta-linaro,linaro-home/meta-linaro,xleng/meta-linaro,linaro-home/meta-linaro,xleng/meta-linaro,xleng/meta-linaro,xleng/meta-linaro,xleng/meta-linaro,linaro-home/meta-linaro,linaro-home/meta-linaro,linaro-home/meta-linaro