tty/sysrq: More intuitive Shift handling

Make Alt-SysRq-Shift-<key> behave like Alt-Shift-SysRq-<key>.

Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Oskari Pirhonen <xxc3ncoredxx@gmail.com>
Link: https://lore.kernel.org/r/YU/6SCmUr9qGkqBu@dj3ntoo


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