configure.ac: fix stray tabs.

Author: douzzer

configure.ac

@@ -6082,10 +6082,10 @@ AS_CASE([$FIPS_VERSION],
     [v6|ready|dev],[ # FIPS 140-3 SRTP-KDF
 
         AS_IF([test "$FIPS_VERSION" = "dev"],
-	    ENABLED_FIPS_DEV=yes
+            ENABLED_FIPS_DEV=yes
             [AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_FIPS_DEV"])
         AS_IF([test "$FIPS_VERSION" = "ready"],
-	    ENABLED_FIPS_READY=yes
+            ENABLED_FIPS_READY=yes
             [AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_FIPS_READY"])
 
         AM_CFLAGS="$AM_CFLAGS \