tools/cmake: Build without some included libs

Saves a little bit of time when compiling cmake.

Added patches to fix searching liblzma and zlib. The issue is that
because pkgconfig is not used, the system libraries get used.

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

tools/cmake/Makefile

@@ -32,8 +32,14 @@ HOST_CONFIGURE_VARS += \
 HOST_CONFIGURE_ARGS := \
 	$(if $(MAKE_JOBSERVER),--parallel="$(MAKE_JOBSERVER)") \
 	--prefix="$(STAGING_DIR_HOST)" \
+	--system-expat \
+	--system-liblzma \
+	--system-zlib \
+	--system-zstd \
 	--generator=Ninja
 
+HOST_LDFLAGS += -Wl,-rpath,$(STAGING_DIR_HOST)/lib
+
 define Host/Compile/Default
 	+$(NINJA) -C $(HOST_BUILD_DIR) $(1)
 endef