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)

graphics/mesa-dri/pkg-plist

@@ -35,6 +35,7 @@ include/GL/internal/dri_interface.h
 libdata/pkgconfig/dri.pc
 @comment libdata/pkgconfig/gbm.pc
 share/drirc.d/00-mesa-defaults.conf
+share/drirc.d/00-radv-defaults.conf
 share/drirc.d/01-freebsd.conf
 %%INTEL_VDRIVER%%share/vulkan/icd.d/intel_icd.%%ARCH%%.json
 %%AMD_VDRIVER%%share/vulkan/icd.d/radeon_icd.%%ARCH%%.json