bootstrap: allow options to autoreconf

Allow options specified to the bootstrap script to propogate
to autoreconf. This is useful for specifying locations to
m4 scripts.

Signed-off-by: William Roberts <william.c.roberts@intel.com>
diff --git a/bootstrap b/bootstrap
index d20ba7f..0416b54 100755
--- a/bootstrap
+++ b/bootstrap
@@ -63,4 +63,4 @@
   printf "TSS2_MU_SRC = \$(TSS2_MU_C) \$(TSS2_MU_H)"
 ) > ${VARS_FILE}
 
-${AUTORECONF} --install --sym
+${AUTORECONF} --install --sym $@