sdcard_image-rpi.bbclass: Copy startup files required for 16MB GPU operation.
sdcard_image-rpi.bbclass: Copy startup files required for 16MB GPU operation.

start_cd.elf and fixup_cd.dat are required when running the system with
a 16MB GPU memory configuration.  This change copies all files contained
in bcm2835-bootfiles instead of cherry picking.

Signed-off-by: Seth Bollinger <88069eddfc20a9968d098f0b20dfb32b8465db70@gmail.com>
Signed-off-by: Andrei Gherzan <8dc7c09356db0b1762fb140617d7375c0a5a4131@gherzan.ro>

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