powerpc/configs/64s: Select ARCH_WANT_DEFAULT_BPF_JIT

Tell the generic BPF code that the JIT should be enabled by default,
rather than the interpreter. Most distros use CONFIG_BPF_JIT_ALWAYS_ON=y
anyway, so this just updates upstream to more closely match that.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230414132415.821564-7-mpe@ellerman.id.au

arch/powerpc/Kconfig

@@ -164,6 +164,7 @@ config PPC
 	select ARCH_USE_CMPXCHG_LOCKREF		if PPC64
 	select ARCH_USE_MEMTEST
 	select ARCH_USE_QUEUED_RWLOCKS		if PPC_QUEUED_SPINLOCKS
+	select ARCH_WANT_DEFAULT_BPF_JIT
 	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select ARCH_WANT_IRQS_OFF_ACTIVATE_MM