linux-phytec-ti

i915: reuse %ph to dump small buffers

Instead of pushing each byte via stack the specifier allows to supply the
pointer and length to dump buffers up to 64 bytes long.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>