asm-generic: rename termios.h, signal.h and mman.h

The existing asm-generic versions are incomplete and included
by some architectures. New architectures should be able
to use a generic version, so rename the existing files and
change all users, which lets us add the new files.

Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/frv/include/asm/termios.h

@@ -52,7 +52,7 @@ struct termio {
 /* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
 
 #ifdef __KERNEL__
-#include <asm-generic/termios.h>
+#include <asm-generic/termios-base.h>
 #endif
 
 #endif /* _ASM_TERMIOS_H */