bluez: update to v5.38

Fixes https://github.com/openwrt/packages/issues/2523
Closes https://github.com/openwrt/packages/pull/2545

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

utils/bluez/Makefile

@@ -8,12 +8,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=bluez
-PKG_VERSION:=5.37
-PKG_RELEASE:=2
+PKG_VERSION:=5.38
+PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=@KERNEL/linux/bluetooth/
-PKG_MD5SUM:=33177e5743e24b2b3738f72be64e3ffb
+PKG_MD5SUM:=dae2ed00c63791800ea7d10a381270a5
 
 PKG_LICENSE:=GPL-2.0+
 PKG_LICENSE_FILES:=COPYING