Schema qualify all geometry casts in raster code, otherwise materialized views do not resture

Reference #4291 for PostGIS 2.5.2

git-svn-id: http://svn.osgeo.org/postgis/branches/2.5@17313 b70326c6-7e19-0410-871a-916f4a2858ee
1 job for svn-2.5 in 23 minutes and 19 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #174542829
test

00:23:19