valgrind: Update to match debug file layout changes

Update the recpie to match the recent debug files layout change.

(From OE-Core rev: 7d191fc547a817f453496f2f48901ff384e34875)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/valgrind/valgrind_3.19.0.bb

@@ -239,8 +239,8 @@ do_install_ptest() {
 
     # As the binary isn't stripped or debug-splitted, the source file isn't fetched
     # via dwarfsrcfiles either, so it needs to be installed manually.
-    mkdir -p ${D}/usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR}/${BP}/none/tests/
-    install ${S}/none/tests/tls.c ${D}/usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR}/${BP}/none/tests/
+    mkdir -p ${D}/usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR}/none/tests/
+    install ${S}/none/tests/tls.c ${D}/usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR}/none/tests/
 }
 
 # avoid stripping some generated binaries otherwise some of the tests will fail