ARM: shmobile: defconfig: Refresh for v5.19-rc1

Refresh the defconfig for Renesas ARM systems:
  - Move CONFIG_SLAB=y (moved in commit 7b42f104 ("mm: Kconfig:
    move swap and slab config options to the MM section")),
  - Enable CONFIG_RENESAS_RZN1WDT (RZN1D-DB),
  - Enable CONFIG_RTC_DRV_RZN1 (RZN1-DB).
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/7ef31a41e1a15d0cedeb6cfc496ce70a78102e32.1654855000.git.geert+renesas@glider.be

arch/arm/configs/shmobile_defconfig

@@ -6,7 +6,6 @@ CONFIG_CGROUPS=y
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_PERF_EVENTS=y
-CONFIG_SLAB=y
 CONFIG_ARCH_RENESAS=y
 CONFIG_PL310_ERRATA_588369=y
 CONFIG_SMP=y
@@ -25,6 +24,7 @@ CONFIG_CPUFREQ_DT=y
 CONFIG_VFP=y
 CONFIG_NEON=y
 # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+CONFIG_SLAB=y
 CONFIG_CMA=y
 CONFIG_NET=y
 CONFIG_PACKET=y
@@ -106,6 +106,7 @@ CONFIG_WATCHDOG=y
 CONFIG_DA9063_WATCHDOG=y
 CONFIG_RENESAS_WDT=y
 CONFIG_RENESAS_RZAWDT=y
+CONFIG_RENESAS_RZN1WDT=y
 CONFIG_MFD_AS3711=y
 CONFIG_MFD_DA9063=y
 CONFIG_MFD_STMPE=y
@@ -177,6 +178,7 @@ CONFIG_RTC_DRV_S35390A=y
 CONFIG_RTC_DRV_RX8581=y
 CONFIG_RTC_DRV_DA9063=y
 CONFIG_RTC_DRV_SH=y
+CONFIG_RTC_DRV_RZN1=y
 CONFIG_DMADEVICES=y
 CONFIG_RCAR_DMAC=y
 CONFIG_RENESAS_USB_DMAC=y