digsig: remove duplicate inclusion in digsig.c

Remove duplicate inclusion of linux/security.h from digsig.c.

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

Change asm/uaccess.h to linux/uaccess.h in digsig.c

Signed-off-by: Rupert Muchembled <rupert@rmuch.net>
digsig: replace uses of gcc specific __FUNCTION__

Use __func__ over gcc specific __FUNCTION__ in digsig.c.

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

Use __func__ over gcc specific __FUNCTION__ in dsi_sig_verify.c.

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