lua-bit32: use PKG_NAME_UPSTREAM

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/lua-bit32/lua-bit32.mk

@@ -5,9 +5,8 @@
 ################################################################################
 
 LUA_BIT32_VERSION = 5.3.0-1
+LUA_BIT32_NAME_UPSTREAM = bit32
 LUA_BIT32_SUBDIR = lua-compat-5.2
-LUA_BIT32_ROCKSPEC = bit32-$(LUA_BIT32_VERSION).rockspec
-LUA_BIT32_SOURCE = bit32-$(LUA_BIT32_VERSION).src.rock
 LUA_BIT32_LICENSE = MIT
 LUA_BIT32_LICENSE_FILES = $(LUA_BIT32_SUBDIR)/LICENSE