libmeminfo: make libdmabufinfo and dmabuf_dump vendor available

Removed dependency on libc++fs and changed liblog to shared linkage to
cope with build errors derived from the change.

Removed dmabuf_dump unnecessary dependencies and made it soc_specific.

Removed reference to std::filesystem::is_symlink to workaround the
following error when linking with the library:

ld.lld: error: undefined symbol:
std::__1::__fs::filesystem::__symlink_status(std::__1::__fs::filesystem::path
const&, std::__1::error_code*)
>>> referenced by filesystem:1743
(external/libcxx/include/filesystem:1743)
>>>
dmabufinfo.o:(android::dmabufinfo::AppendDmaBufInfo(int,
std::__1::vector<android::dmabufinfo::DmaBuffer,
std::__1::allocator<android::dmabufinfo::DmaBuffer> >*)) in archive

Bug: 63860998

Change-Id: Ieafdc87c64f153625df9e21fc8299292b2447aef
Signed-off-by: Erick Reyes <erickreyes@google.com>