rtl-sdr: Update to 0.5.4 and switch to tarballs

Simpler

Signed-off-by: Rosen Penev <rosenp@gmail.com>

utils/rtl-sdr/Makefile

@@ -7,19 +7,14 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=rtl-sdr
-PKG_VERSION:=0.5.3-20150608-$(PKG_SOURCE_VERSION)
-PKG_RELEASE:=3
+PKG_VERSION:=0.5.4
+PKG_RELEASE:=1
 
-PKG_SOURCE_PROTO:=git
-PKG_SOURCE_URL:=git://git.osmocom.org/rtl-sdr.git
-PKG_SOURCE_VERSION:=e3c03f738f5aef4dc51e2b741fbdb542b9cc1bb1
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=https://git.osmocom.org/rtl-sdr/snapshot
+PKG_HASH:=f38da8a230de5fc997f83a19cff7f8c1a66b62a9cf70ddc997d44696b97ea1df
 
-PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
-PKG_SOURCE:=$(PKG_SOURCE_SUBDIR).tar.gz
-PKG_MIRROR_HASH:=6b1a3ae95e6d9e896ec4f8dcca46b7cf5741533bb549d429ac3fd46c76e2d595
-PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_SOURCE_SUBDIR)
 PKG_BUILD_PARALLEL:=1
-
 CMAKE_INSTALL:=1
 
 PKG_LICENSE:=GPLv2