staging: android: ashmem: Add support for 32bit ashmem calls in a 64bit kernel

Android's shared memory subsystem, Ashmem, does not support calls from a
32-bit userspace in a 64 bit kernel. This patch adds support for syscalls
coming from a 32-bit userspace in a 64-bit kernel.

The patch has been successfully tested on ARMv8 AEM and Versatile
Express V2P-CA9.

Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
2 files changed