rename archive.h to bb_archive.h. no code changes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/archival/rpm2cpio.c b/archival/rpm2cpio.c
index ff4a0d1..28b43a1 100644
--- a/archival/rpm2cpio.c
+++ b/archival/rpm2cpio.c
@@ -13,7 +13,7 @@
 //usage:       "Output a cpio archive of the rpm file"
 
 #include "libbb.h"
-#include "archive.h"
+#include "bb_archive.h"
 #include "rpm.h"
 
 enum { rpm_fd = STDIN_FILENO };