digsig: remove dsi_debug.h

Remove dsi_debug.h and all references to it, and move its definitions
to dsi.h.

Signed-off-by: Rupert Muchembled <rupert@rmuch.net>
digsig: fix spacing errors in digsig_cache.c

Fix spacing errors reported by checkpatch.pl in digsig_cache.c.

Signed-off-by: Rupert Muchembled <rupert@rmuch.net>
digsig: replace uses of __FUNCTION__ in digsig_cache.c

Replace uses of __FUNCTION__ with __func__ in digsig_cache.c, reported
by checkpatch.pl.

Signed-off-by: Rupert Muchembled <rupert@rmuch.net>
digsig: replace inclusion of asm/uaccess.h in digsig_cache.c

Include linux/uaccess.h instead of asm/uaccess.h in digsig_cache.c.

Signed-off-by: Rupert Muchembled <rupert@rmuch.net>
digsig: use __func__ in dsi_sysfs.c

Replace use of __FUNCTION__ with __func__ in dsi_sysfs.c.

Signed-off-by: Rupert Muchembled <rupert@rmuch.net>
digsig: rename dsi_sysfs.c/h to digsig_sysfs.c/h

Rename dsi_sysfs.c and dsi_sysfs.h to digsig_sysfs.c and digsig_sysfs.h
respectively, updating the object name in the makefile, correcting the
inclusion in digsig.c, and renaming the header guard macro.

Signed-off-by: Rupert Muchembled <rupert@rmuch.net>
digsig: rename dsi_sig_verify.c/h to digsig_verify.c/h

Rename dsi_sig_verify.c and dsi_sig_verify.h to digsig_verify.c and
digsig_verify.h respectively, updating all references, comments,
include guards and makefile object name.

Signed-off-by: Rupert Muchembled <rupert@rmuch.net>