angstrom-core-tweaks.inc: Append libc name to sysroot

This will help in building uclibc and eglibc based
angstrom in same  tmpdir

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>

conf/distro/include/angstrom-core-tweaks.inc

@@ -6,6 +6,9 @@ TARGET_LDFLAGS += "${TARGET_LINK_HASH_STYLE}"
 TOOLCHAIN_PATH ?= "${STAGING_DIR_NATIVE}${prefix_native}/bin/${BASE_PACKAGE_ARCH}${HOST_VENDOR}-${HOST_OS}"
 TOOLCHAIN_SYSPATH ?= "${TOOLCHAIN_PATH}/${TARGET_SYS}"
 
+# Angstrom cares for uclibc and eglibc
+STAGING_DIR_TARGET = "${STAGING_DIR}/${MACHINE}-${ANGSTROMLIBC}"
+
 # Image.bbclass stuff:
 
 #