add pattern for linux 5.x sources to makefile

Makefile

@@ -65,6 +65,7 @@ $(patsubst hashes/%.sha1,$(SOURCES)/%,$(wildcard hashes/isl*)): SITE = $(ISL_SIT
 $(patsubst hashes/%.sha1,$(SOURCES)/%,$(wildcard hashes/binutils*)): SITE = $(BINUTILS_SITE)
 $(patsubst hashes/%.sha1,$(SOURCES)/%,$(wildcard hashes/gcc*)): SITE = $(GCC_SITE)/$(basename $(basename $(notdir $@)))
 $(patsubst hashes/%.sha1,$(SOURCES)/%,$(wildcard hashes/musl*)): SITE = $(MUSL_SITE)
+$(patsubst hashes/%.sha1,$(SOURCES)/%,$(wildcard hashes/linux-5*)): SITE = $(LINUX_SITE)/v5.x
 $(patsubst hashes/%.sha1,$(SOURCES)/%,$(wildcard hashes/linux-4*)): SITE = $(LINUX_SITE)/v4.x
 $(patsubst hashes/%.sha1,$(SOURCES)/%,$(wildcard hashes/linux-3*)): SITE = $(LINUX_SITE)/v3.x
 $(patsubst hashes/%.sha1,$(SOURCES)/%,$(wildcard hashes/linux-2.6*)): SITE = $(LINUX_SITE)/v2.6