Update BusyBox

BusyBox is unable to run properly on non-root applications due to seccomp introduced in Android 8.0.
The SDK-21 libc.a has system call wrappers that uses the system calls on the whitelist, so binaries compiled with the updated libc can work properly.

build.py

@@ -122,10 +122,6 @@ def build_binary(args):
 	old_platform = False
 	flags = base_flags
 
-	if 'busybox' in targets:
-		flags += ' B_BB=1'
-		old_platform = True
-
 	if 'b64xz' in targets:
 		flags += ' B_BXZ=1'
 		old_platform = True
@@ -163,6 +159,10 @@ def build_binary(args):
 		flags += ' B_BOOT=1'
 		other = True
 
+	if 'busybox' in targets:
+		flags += ' B_BB=1'
+		other = True
+
 	if other:
 		proc = subprocess.run('{} -C native {} -j{}'.format(ndk_build, flags, cpu_count), shell=True)
 		if proc.returncode != 0:

native/jni/external/busybox

@@ -1 +1 @@
-Subproject commit e074d81e4698bfff7043431e6e185da5e978a536
+Subproject commit 47a1fdda34cbf51932199586b4ddb3c2d4f76af2