ARM: shmobile: defconfig: Enable missing PCIE_RCAR dependency

PCIE_RCAR is no longer enabled, as it now has a dependency on
PCI_MSI_IRQ_DOMAIN instead of selecting PCI_MSI and PCI_MSI_IRQ_DOMAIN.
Fix this by explicitly enabling PCIE_RCAR in shmobile_defconfig.

Fixes: 3ee80364 ("PCI/MSI: irqchip: Fix PCI_MSI dependencies")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/configs/shmobile_defconfig

@@ -27,6 +27,7 @@ CONFIG_ARCH_SH73A0=y
 CONFIG_PL310_ERRATA_588369=y
 CONFIG_ARM_ERRATA_754322=y
 CONFIG_PCI=y
+CONFIG_PCI_MSI=y
 CONFIG_PCI_RCAR_GEN2=y
 CONFIG_PCIE_RCAR=y
 CONFIG_SMP=y