ARM: socfpga: Drop unneeded select of PCI_DOMAINS_GENERIC

Support for Altera SOCFPGA systems depends on ARCH_MULTI_V7, and thus on
ARCH_MULTIPLATFORM.
As the latter selects PCI_DOMAINS_GENERIC, there is no need for
ARCH_SOCFPGA to select PCI_DOMAINS_GENERIC.

Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Geert Uytterhoeven <[e-mail]>
Cc: Dinh Nguyen <[e-mail]>
Acked-by: Arnd Bergmann <[e-mail]>
Acked-by: Dinh Nguyen <[e-mail]>
Signed-off-by: Arnd Bergmann <[e-mail]>

arch/arm/mach-socfpga/Kconfig

···
 	select HAVE_ARM_SCU
 	select HAVE_ARM_TWD if SMP
 	select MFD_SYSCON
-	select PCI_DOMAINS_GENERIC if PCI
 	select ARM_ERRATA_754322
 	select ARM_ERRATA_764369 if SMP
 	select ARM_ERRATA_775420