Add initial support for the LX7 processor.
Support for firmware loading and processor boot are
still pending. Note this also cleans up some descriptions
in struct cam_icp_hw_mgr that were left over when the
debugfs entries were renamed.
CRs-Fixed: 2722486
Change-Id: I626cc27e26e1ebac8ec6b4509ab5da2a013457b1
Signed-off-by: Karthik Anantha Ram <kartanan@codeaurora.org>