msm: Add support for ION Flushing without virtual address

Video has very large buffers to be flushed. Due to lack of
vmalloc space, ion_map_kernel cannot be called on each of
the video buffers. With this change the ion handle can be
flushed without the need of the kernel mapping.

Change-Id: If026f21e44a2cce6c2b8c232fc80a69d0dabcd14
Signed-off-by: Neeti Desai <neetid@codeaurora.org>
ion: tracing: add ftrace events for ion allocations

Add ftrace events for ion allocations to make it easier to profile
their performance.

Change-Id: I9f32e076cd50d7d3a145353dfcef74f0f6cdf8a0
Signed-off-by: Liam Mark <lmark@codeaurora.org>