lmp-base: update meta-lmp layer

Relevant changes:
- 4c50c842 base: u-boot/fip: fix bootfirmware version without firmware node

Signed-off-by: Ricardo Salveti <ricardo@foundries.io>

lmp-base.xml

@@ -9,7 +9,7 @@
   <project name="lmp-tools" path="tools/lmp-tools" remote="fio">
     <linkfile dest="setup-environment" src="setup-environment"/>
   </project>
-  <project name="meta-lmp" path="layers/meta-lmp" remote="fio" revision="3ffb58ef6d4499fd4841a3b107768c52d18303d4"/>
+  <project name="meta-lmp" path="layers/meta-lmp" remote="fio" revision="4c50c842f08276ab0d2836ec79537334e937bd7f"/>
   <project name="meta-clang" path="layers/meta-clang" revision="7e3f2a4126d1bfacda497dfa6b59f3f471f1a984"/>
   <project name="meta-openembedded" path="layers/meta-openembedded" revision="571e36e20e9d1f27af0eb4545291beeb64f280e2"/>
   <project name="meta-lts-mixins" path="layers/meta-lts-mixins" revision="691dde801b009d928fbf8a820dace69dca91eb29"/>