configure: openssl is compatible with the LGPL.

looking at the license i cannot see why they would be incompatible and
researching this matter a bit also turned up no reasons.

If i missed something, please dont hesitate to flame me and or revert
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

configure

@@ -2862,7 +2862,7 @@ die_license_disabled gpl x11grab
 
 die_license_disabled nonfree libaacplus
 die_license_disabled nonfree libfaac
-die_license_disabled nonfree openssl
+enabled gpl && die_license_disabled nonfree openssl
 
 die_license_disabled version3 libopencore_amrnb
 die_license_disabled version3 libopencore_amrwb