pango: bump to version 1.36.3

Note: HarfBuzz is needed to build Pango. Configure does not return an
error if HarfBuzz is missing, but without HarfBuzz it can't enable any
backends.

Remove patch pango-no-const-return because it is applied upstream in
this version.

Signed-off-by: Hadrien Boutteville <hadrien.boutteville@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>