ANDROID: trusty: Add share memory api and call it where needed

The current implementation only supports contiguous regions and uses the
physical address as the id.

includes: Remove trusty_call32_mem_buf

It is no longer used.

includes: Set dma_mask

Set dma_mask to 48 bits. This is the current limit of our encoded page
information. Allow sharing memory above 4GB with trusty on platforms
where the default dma_mask is 32 bits.

Bug: 128698138
Change-Id: Ib0801a0d67032bdf35cea4c27e27663bf68b2aa1
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Signed-off-by: Tri Vo <trong@google.com>