libpayload: fix wrong endian assumption in sha1.c

Not all platforms !x86 are big endian, hence actually look
at the CONFIG_LITTLE_ENDIAN flag instead of CONFIG_ARCH_X86.

Change-Id: Ibbd8f48b377a1121dd1e045834a94a2d67eda2ab
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: https://gerrit.chromium.org/gerrit/56066
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Ronald G. Minnich <rminnich@chromium.org>
Commit-Queue: Stefan Reinauer <reinauer@chromium.org>
Tested-by: Stefan Reinauer <reinauer@chromium.org>
Reviewed-on: http://review.coreboot.org/4236
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
diff --git a/payloads/libpayload/crypto/sha1.c b/payloads/libpayload/crypto/sha1.c
index 3c97bf1..c973e18 100644
--- a/payloads/libpayload/crypto/sha1.c
+++ b/payloads/libpayload/crypto/sha1.c
@@ -30,18 +30,12 @@
 
 /* Moved from libpayload.h */
 
-#ifdef CONFIG_ARCH_X86
+#ifdef CONFIG_LITTLE_ENDIAN
 #define BYTE_ORDER      LITTLE_ENDIAN
 #else
 #define BYTE_ORDER      BIG_ENDIAN
 #endif
 
-#if 0
-#include <sys/param.h>
-#include <string.h>
-#include <sha1.h>
-#endif
-
 #define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits))))
 
 /*