runtime: makefile allow override DAX value
Allow enable DAX using env variable
Fixes:
@@ -191,7 +191,7 @@ DEFVIRTIOFSDAEMON := $(LIBEXECDIR)/kata-qemu/virtiofsd
DEFVALIDVIRTIOFSDAEMONPATHS := [\"$(DEFVIRTIOFSDAEMON)\"]
# Default DAX mapping cache size in MiB
#if value is 0, DAX is not enabled
-DEFVIRTIOFSCACHESIZE := 0
+DEFVIRTIOFSCACHESIZE ?= 0
DEFVIRTIOFSCACHE ?= auto
# Format example:
# [\"-o\", \"arg1=xxx,arg2\", \"-o\", \"hello world\", \"--arg3=yyy\"]
