gpu: vivante: Clean-up trailing whitespace in comment headers.

Delete trailing whitespaces in the comments at the top of each
file. This makes the headers match up in all the files in the
etna_viv driver.

Signed-off-by: Steven J. Hill <sjhill@realitydiluted.com>
gpu: vivante: Move 'gc_hal_kernel_debug.c' to new directory.

This change moves 'gc_hal_kernel_debug.c' from the directory
'hal/os/linux/kernel' to 'hal/kernel' to match the etna_viv
driver. All the new header files have been added. The other
changes were made to use the new 'gc_hal_kernel_debug.c' file.

Signed-off-by: Steven J. Hill <sjhill@realitydiluted.com>
fb: Fix potential JZ4770 framebuffer initialisation.

At times the screen gets corrupted. This patch seems to fix it.

Signed-off-by: Steven J. Hill <sjhill@realitydiluted.com>
gpu: vivante: Complete merge with 'etna_viv' driver tree.

This imports the 'etna_viv' code and adds changes for the JZ4770 SoC.

Signed-off-by: Steven J. Hill <sjhill@realitydiluted.com>