powerpc/configs/64s: Enable EMULATED_STATS

This is enabled in some of the other powerpc configs, and can be useful
for debugging, so enable it in ppc64[le]_defconfig.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230414132415.821564-19-mpe@ellerman.id.au

arch/powerpc/configs/ppc64_defconfig

@@ -409,6 +409,7 @@ CONFIG_STACK_TRACER=y
 CONFIG_SCHED_TRACER=y
 CONFIG_FTRACE_SYSCALLS=y
 CONFIG_BLK_DEV_IO_TRACE=y
+CONFIG_PPC_EMULATED_STATS=y
 CONFIG_CODE_PATCHING_SELFTEST=y
 CONFIG_FTR_FIXUP_SELFTEST=y
 CONFIG_MSI_BITMAP_SELFTEST=y