lockfile-progs: Pass DEBUG_PREFIX_MAP options

This recipe overrides normal CFLAGS which loses the prefix rewrite
options, add them manually.

Fixes
File /usr/bin/.debug/mail-lock in package lockfile-progs-dbg contains reference to TMPDIR

Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-extended/lockfile-progs/lockfile-progs_0.1.19.bb

@@ -12,7 +12,7 @@ SRC_URI = "${DEBIAN_MIRROR}/main/l/${BPN}/${BPN}_${PV}.tar.gz"
 SRC_URI[sha256sum] = "2c5704b01c8f474f82921780e4592a927b2bf6a6d7616354a6c5d7cd5664857e"
 
 do_compile() {
-    oe_runmake CFLAGS=' -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -fasynchronous-unwind-tables'
+    oe_runmake CFLAGS=' -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -fasynchronous-unwind-tables ${DEBUG_PREFIX_MAP}'
 }
 
 do_install() {