sbc: fix license

sbc library itself is licensed under LGPLv2.1 or higher as mentioned in
sbc/sbc.h or any other file in sbc directory.

sbc test applications are licensed under GPLv2 or higher as mentioned in
src/sbcenc.c or any other file in src directory

Reported-by: Vladimir Koutny <vladimir.koutny@streamunlimited.com>
(From OE-Core rev: ef34ed6282627005d0077f88235fdbe42dea23a3)

Signed-off-by: Radek Dostál <radek.dostal@streamunlimited.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-multimedia/sbc/sbc_1.3.bb

@@ -2,8 +2,12 @@ SUMMARY = "SBC Audio Codec"
 DESCRIPTION = "Bluetooth low-complexity, subband codec (SBC) library."
 HOMEPAGE = "https://www.bluez.org"
 SECTION = "libs"
-LICENSE = "GPLv2"
+LICENSE = "GPLv2+ & LGPLv2.1+"
+LICENSE_${PN} = "LGPLv2.1+"
+LICENSE_${PN}-examples = "GPLv2+"
 LIC_FILES_CHKSUM = "file://COPYING;md5=12f884d2ae1ff87c09e5b7ccc2c4ca7e \
+                    file://COPYING.LIB;md5=fb504b67c50331fc78734fed90fb0e09 \
+                    file://src/sbcenc.c;beginline=1;endline=24;md5=08e7a70b127f4100ff2cd7d629147d8d \
                     file://sbc/sbc.h;beginline=1;endline=26;md5=0f57d0df22b0d40746bdd29805a4361b"
 
 DEPENDS = "libsndfile1"