package/gdb: use macro to extract Xtensa overlay

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/gdb/gdb.mk

@@ -46,7 +46,7 @@ HOST_GDB_INSTALL_OPTS += MAKEINFO=true install
 # Apply the Xtensa specific patches
 ifneq ($(ARCH_XTENSA_CORE_NAME),)
 define GDB_XTENSA_PRE_PATCH
-	tar xf $(ARCH_XTENSA_OVERLAY_TAR) -C $(@D) --strip-components=1 gdb
+	$(call arch-xtensa-overlay-extract,$(@D),gdb)
 endef
 GDB_PRE_PATCH_HOOKS += GDB_XTENSA_PRE_PATCH
 HOST_GDB_PRE_PATCH_HOOKS += GDB_XTENSA_PRE_PATCH