libglvnd: RPROVIDE libegl

Some packages (XWayland, X.org) add runtime dependency on libegl in
order to let it by open at runtime. Make libglvnd RPROVIDE that package
name too.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-graphics/libglvnd/libglvnd_1.7.0.bb

@@ -35,3 +35,5 @@ PROVIDES = " \
     ${@bb.utils.contains('PACKAGECONFIG', 'gles2', 'virtual/libgles2 virtual/libgles3', '', d)} \
     ${@bb.utils.contains('PACKAGECONFIG', 'egl', 'virtual/egl', '', d)} \
 "
+
+RPROVIDES:${PN} += "${@bb.utils.contains('PACKAGECONFIG', 'egl', 'libegl', '', d)}"