misc: poky/LICENSE has changed.. reference a hopefully more stable file

Only reference the COPYING.MIT as it is unlikely to change in
the next upgrade.
diff --git a/recipes-osmocom/osmocom-tcpdump/osmocom-tcpdump_1.0.bb b/recipes-osmocom/osmocom-tcpdump/osmocom-tcpdump_1.0.bb
index da0e105..a1e9558 100644
--- a/recipes-osmocom/osmocom-tcpdump/osmocom-tcpdump_1.0.bb
+++ b/recipes-osmocom/osmocom-tcpdump/osmocom-tcpdump_1.0.bb
@@ -3,7 +3,7 @@
 RDEPENDS_${PN} = "tcpdump bash"
 PR = "r11"
 
-LIC_FILES_CHKSUM = "file://${COREBASE}/LICENSE;md5=3f40d7994397109285ec7b81fdeb3b58"
+LIC_FILES_CHKSUM = "file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
 
 SRC_URI = " \
   file://osmocom-tcpdump \