Rename opensslfeatures.h to opensslconf.h.

Some software #includes opensslconf.h which typically contains settings that we
put in opensslfeatures.h (a header name not in OpenSSL). Rename it to
opensslconf.h.

Change-Id: Icd21dde172e5e489ce90dd5c16ae4d2696909fb6
Reviewed-on: https://boringssl-review.googlesource.com/7216
Reviewed-by: Adam Langley <agl@google.com>

include/openssl/base.h

diff --git a/include/openssl/base.h b/include/openssl/base.h
index 79f02cd..f1da61a 100644
--- a/include/openssl/base.h
+++ b/include/openssl/base.h
@@ -60,7 +60,7 @@
 #include <stdint.h>
 #include <sys/types.h>
 
-#include <openssl/opensslfeatures.h>
+#include <openssl/opensslconf.h>
 
 #if defined(__cplusplus)
 extern "C" {

include/openssl/opensslconf.h

diff --git a/include/openssl/opensslfeatures.h b/include/openssl/opensslconf.h
similarity index 92%
rename from include/openssl/opensslfeatures.h
rename to include/openssl/opensslconf.h
index c3f97d5..bf65fc3 100644
--- a/include/openssl/opensslfeatures.h
+++ b/include/openssl/opensslconf.h
@@ -15,8 +15,8 @@
 /* This header is provided in order to make compiling against code that expects
    OpenSSL easier. */
 
-#ifndef OPENSSL_HEADER_OPENSSLFEATURES_H
-#define OPENSSL_HEADER_OPENSSLFEATURES_H
+#ifndef OPENSSL_HEADER_OPENSSLCONF_H
+#define OPENSSL_HEADER_OPENSSLCONF_H
 
 
 #define OPENSSL_NO_BF
@@ -57,4 +57,4 @@
 #define OPENSSL_NO_WHIRLPOOL
 
 
-#endif  /* OPENSSL_HEADER_OPENSSLFEATURES_H */
+#endif  /* OPENSSL_HEADER_OPENSSLCONF_H */