build: minor python3 updates

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Idbc9d0b2ff60fad2fff9d013ff19a4208f4d8161
diff --git a/configure.ac b/configure.ac
index 0cbc673..80be721 100644
--- a/configure.ac
+++ b/configure.ac
@@ -25,8 +25,8 @@
     AX_APPEND_COMPILE_FLAGS([-fpic -Wall -Werror], [CXXFLAGS])
 
     # Python
-    AM_PATH_PYTHON([2.7], [AC_SUBST([PYTHON], [echo "$PYTHON"])], [AC_MSG_ERROR(
-        [Could not find python-2.7 installed...python-2.7 is required])])
+    AM_PATH_PYTHON([3], [AC_SUBST([PYTHON], [echo "$PYTHON"])], [AC_MSG_ERROR(
+        [Could not find python-3 installed...python-3 is required])])
 
     # Suppress the --with-libtool-sysroot error
     LT_INIT