[POWERPC] Make ppc64_defconfig without CONFIG_PPC_PSERIES build

Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

arch/powerpc/lib/locks.c

@@ -43,9 +43,11 @@ void __spin_yield(raw_spinlock_t *lock)
 	if (firmware_has_feature(FW_FEATURE_ISERIES))
 		HvCall2(HvCallBaseYieldProcessor, HvCall_YieldToProc,
 			((u64)holder_cpu << 32) | yield_count);
+#ifdef CONFIG_PPC_SPLPAR
 	else
 		plpar_hcall_norets(H_CONFER,
 			get_hard_smp_processor_id(holder_cpu), yield_count);
+#endif
 }
 
 /*
@@ -72,9 +74,11 @@ void __rw_yield(raw_rwlock_t *rw)
 	if (firmware_has_feature(FW_FEATURE_ISERIES))
 		HvCall2(HvCallBaseYieldProcessor, HvCall_YieldToProc,
 			((u64)holder_cpu << 32) | yield_count);
+#ifdef CONFIG_PPC_SPLPAR
 	else
 		plpar_hcall_norets(H_CONFER,
 			get_hard_smp_processor_id(holder_cpu), yield_count);
+#endif
 }
 #endif