sane-backends: update to 1.0.32

sane-backends: update to 1.0.32

Dropped patches:
-102-pixma_Restore_old_behaviour_in_case_XML_support_is_missing.patch (merged)
-101-fix_uclibc_std_rand.patch std::round was unavailable because of a wrong configure
 var from the uClibc days. Fixed upstream with 1647790ae6202bd70b199e2aa44f8eb43e8d3af1

Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
(cherry picked from commit bf1a138f9276718a76589b3b170648d85bbb8c0b)
(cherry picked from commit 49e75e810585a1e173e74fe3b7154a65835675c7)