iotedge-{cli,daemon}: fix build with newer meta-rust

* the binaries are built in ${B} since meta-rust commit:
  meta-rust/meta-rust@a673320
  adjust do_install to match that

Signed-off-by: Martin Jansa <martin.jansa@lge.com>

recipes-core/iotedge-cli/iotedge-cli.inc

@@ -7,6 +7,6 @@ export LIBIOTHSM_NOBUILD="On"
 do_install () {
     # Binaries
     install -d  "${D}${bindir}"
-    install -m 755 "${WORKDIR}/iotedge-${PV}/edgelet/target/${CARGO_TARGET_SUBDIR}/iotedge" ${D}${bindir}/iotedge
+    install -m 755 "${B}/target/${CARGO_TARGET_SUBDIR}/iotedge" ${D}${bindir}/iotedge
 }
 

recipes-core/iotedge-daemon/iotedge-daemon.inc

@@ -18,7 +18,7 @@ INITSCRIPT_PARAMS_${PN} = "defaults"
 do_install () {
     # Binaries
     install -d  "${D}${bindir}"
-    install -m 755 "${WORKDIR}/iotedge-${PV}/edgelet/target/${CARGO_TARGET_SUBDIR}/iotedged" ${D}${bindir}/iotedged
+    install -m 755 "${B}/target/${CARGO_TARGET_SUBDIR}/iotedged" ${D}${bindir}/iotedged
 
     # Config file
     install -d "${D}${sysconfdir}/iotedge"