graphics/mesa-dri: Fix PLIST

• Bump PORTREVISION for package change

> Checking for pkg-plist issues (check-plist)

> Parsing plist

> Checking for items in STAGEDIR missing from pkg-plist

Error: Orphaned: share/drirc.d/00-radv-defaults.conf

> Checking for items in pkg-plist which are not in STAGEDIR

> Error: Plist issues found.

• Error code 1

Stop.
make: stopped in /usr/ports/graphics/mesa-dri

>> Error: check-plist failures detected

Approved by: portmgr (blanket)