sdcard_image-rpi: Use ${KERNEL_IMAGETYPE}-${MACHINE} as kernel source from deploy dir
sdcard_image-rpi: Use ${KERNEL_IMAGETYPE}-${MACHINE} as kernel source from deploy dir

${KERNEL_IMAGETYPE} symlink was introduced after denzil so we use
${KERNEL_IMAGETYPE}-${MACHINE} to be able to satisfy the existence in denzil and master
as well.

Signed-off-by: Andrei Gherzan <8dc7c09356db0b1762fb140617d7375c0a5a4131@gherzan.ro>

sarnold/meta-alt-desktop-extras,sarnold/meta-alt-desktop-extras,sarnold/meta-alt-desktop-extras