lmp-base: update meta-lmp layer

Relevant changes:
- 5253f3b39 base: linux-lmp-rt: 6.1: bump to v6.1.102-rt37
- 95259b0a0 base: linux-lmp: 6.1: bump to v6.1.102
- 9bb04b531 base: lmp: bump version for the 4.0.20 yocto release
- bb1529ab8 Revert "base: lmp: clang: disable -mbranch-protection=standard"

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="fc2108ec7edd5745c5f278dd64c06395c0cd26f7"/>
+  <project name="meta-lmp" path="layers/meta-lmp" remote="fio" revision="5253f3b398058030329134993cafeb926d2039c6"/>
   <project name="meta-clang" path="layers/meta-clang" revision="2ed384c64e206016c628451672c688e59944381b"/>
   <project name="meta-openembedded" path="layers/meta-openembedded" revision="4052c97dc83d0c88fc277d6fc1815e0699020daa"/>
   <project name="meta-lts-mixins" path="layers/meta-lts-mixins-go" revision="6b10782a1e5760d1dd5d33d561e6367b5f971d8e"/>