pugixml: update to 1.12.1

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

libs/pugixml/Makefile

@@ -6,12 +6,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=pugixml
-PKG_VERSION:=1.11.4
+PKG_VERSION:=1.12.1
 PKG_RELEASE:=$(AUTORELEASE)
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://github.com/zeux/pugixml/releases/download/v$(PKG_VERSION)
-PKG_HASH:=8ddf57b65fb860416979a3f0640c2ad45ddddbbafa82508ef0a0af3ce7061716
+PKG_HASH:=dcf671a919cc4051210f08ffd3edf9e4247f79ad583c61577a13ee93af33afc7
+PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-1.12
 
 PKG_MAINTAINER:=
 PKG_LICENSE:=MIT