loongarch: remove generic-y += termios.h

not really needed - UAPI mandatory-y += termios.h is sufficient...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Huacai Chen <chenhuacai@kernel.org>
Link: https://lore.kernel.org/r/20220821010239.1554132-1-viro@zeniv.linux.org.uk


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>