types: Complement the aligned types with signed 64-bit one

[ Upstream commit e4ca0e59c39442546866f3dd514a3a5956577daf ]

Some user may want to use aligned signed 64-bit type.
Provide it for them.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20240903180218.3640501-2-andriy.shevchenko@linux.intel.com


Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Stable-dep-of: 5097eaae98e5 ("iio: adc: dln2: Use aligned_s64 for timestamp")
Signed-off-by: Sasha Levin <sashal@kernel.org>