ARM: shmobile: Allow r8a7791 to build non-SMP APMU code

Build the APMU for r8a7791 even though SMP is
disabled in the kernel config. Also initialize
Suspend-to-RAM from pm-r8a7791.c to in the future
cover both UP and SMP use cases of the APMU.
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/mach-shmobile/Makefile

@@ -37,13 +37,14 @@ endif
 # CPU reset vector handling objects
 cpu-y				:= platsmp.o headsmp.o
 cpu-$(CONFIG_ARCH_R8A7790)	+= platsmp-apmu.o
+cpu-$(CONFIG_ARCH_R8A7791)	+= platsmp-apmu.o
 
 # SMP objects
 smp-y				:= $(cpu-y)
 smp-$(CONFIG_ARCH_SH73A0)	+= smp-sh73a0.o headsmp-scu.o platsmp-scu.o
 smp-$(CONFIG_ARCH_R8A7779)	+= smp-r8a7779.o headsmp-scu.o platsmp-scu.o
 smp-$(CONFIG_ARCH_R8A7790)	+= smp-r8a7790.o
-smp-$(CONFIG_ARCH_R8A7791)	+= smp-r8a7791.o platsmp-apmu.o
+smp-$(CONFIG_ARCH_R8A7791)	+= smp-r8a7791.o
 smp-$(CONFIG_ARCH_EMEV2)	+= smp-emev2.o headsmp-scu.o platsmp-scu.o
 
 # PM objects
@@ -54,7 +55,7 @@ obj-$(CONFIG_ARCH_SH73A0)	+= pm-sh73a0.o
 obj-$(CONFIG_ARCH_R8A7740)	+= pm-r8a7740.o pm-rmobile.o
 obj-$(CONFIG_ARCH_R8A7779)	+= pm-r8a7779.o pm-rcar.o
 obj-$(CONFIG_ARCH_R8A7790)	+= pm-r8a7790.o pm-rcar.o $(cpu-y)
-obj-$(CONFIG_ARCH_R8A7791)	+= pm-r8a7791.o pm-rcar.o
+obj-$(CONFIG_ARCH_R8A7791)	+= pm-r8a7791.o pm-rcar.o $(cpu-y)
 
 # IRQ objects
 obj-$(CONFIG_ARCH_SH7372)	+= entry-intc.o

arch/arm/mach-shmobile/pm-r8a7791.c

@@ -69,4 +69,5 @@ void __init r8a7791_pm_init(void)
 	iounmap(p);
 
 	r8a7791_sysc_init();
+	shmobile_smp_apmu_suspend_init();
 }

arch/arm/mach-shmobile/smp-r8a7791.c

@@ -30,7 +30,6 @@ static void __init r8a7791_smp_prepare_cpus(unsigned int max_cpus)
 	shmobile_smp_apmu_prepare_cpus(max_cpus);
 
 	r8a7791_pm_init();
-	shmobile_smp_apmu_suspend_init();
 }
 
 static int r8a7791_smp_boot_secondary(unsigned int cpu,