package/mpdecimal: bump to version 2.5.0

Update license hash due to date update.

Tweak patch so that it applies still.

This update is needed following the bump of python3 to 3.9.0 in commit
f26ce577605e843ebf0f5583242ee9ff3cd08ac3.

Fixes:
http://autobuild.buildroot.net/results/b73/b7384312567825e6f4ddbd7c08c1b8e44c7f1f9b

Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
3 files changed