glamor: xv: remove aligning from Xv procedures

Some alignes are very strict. For example YV12 or I420 width is at least multiple of two according to standard, but glamor implies ALIGN(*w >> 1, 4)

Signed-off-by: Andrey Zhadchenko <azhadchenko@gmail.com>
4 jobs for glamor_xv in 3 minutes and 11 seconds (queued for 5 seconds)
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Status Job ID Name Coverage
  Docker Image
passed #1852569
debian-testing

00:00:18

 
  Build And Test
passed #1852570
autotools

00:02:53

passed #1852571
meson

00:01:22

passed #1852572
meson-noglamor

00:01:07