ion: fix a possible memory leak in ion_cma_allocate

The memory leak occurs when kmalloc() for info->table fails, info is freed
but info->cpu_addr allocation is left.
Fixes: eeeb9407 ("ion: add snapshot of ion support for MSM")

Bug: 130817249
Test: builds and boots

Change-Id: I7faf5be5129a46b2f874f4e3803470e5f5130a21
Reported-by: Mikael Magnusson <Mikael.Magnusson@sony.com>
Suggested-by: Mikael Magnusson <Mikael.Magnusson@sony.com>
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Patch: received via email from surenb@google.com @ 04/18/19, 14:42
Signed-off-by: Chetan C R <cravin@codeaurora.org>