ANDROID: trusty: Create API for sharing trusty info

Android Trusty-Driver and Trusty-Kernel need a shared-memory
based data-structure for exchanging information in order to
influence each other for improved performance. An API is
required for the trusty-driver to register the presence
of the shared-memory block with the trusty-kernel, after
the trusty-driver has established it during probe().
Likewise, an API is also required to unregister the
shared-memory and release resources during trusty-driver
remove().

Bug: 251903627
Test: shpriotest
Change-Id: I7670dcfd711f5cbeed32650dc13eac2cedc8e5db
Signed-off-by: Sudhin Mishra <sudhin@google.com>