msm: camera: icp: Rename debugfs entries to be proc hw agnostic

Drop references to A5 within the debugfs entries so that they
may be reused with other processors.

CRs-Fixed: 2722486
Change-Id: I2680a98dd3d38906e616712da3d6e2835ebb9a85
Signed-off-by: Fernando Pacheco <fpacheco@codeaurora.org>