MIPS: ralink: deactivate PCI support for SOC_MT7621

The Linux does not support PCI on the SOC_MT7621, if it is selected the
Linux build runs into a compile error. Remove HAVE_PCI from the
SOC_MT7621 SoC.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: ralf@linux-mips.org
Cc: jhogan@kernel.org
Cc: john@phrozen.org
Cc: linux-mips@vger.kernel.org

arch/mips/ralink/Kconfig

@@ -51,7 +51,6 @@ choice
 		select MIPS_GIC
 		select COMMON_CLK
 		select CLKSRC_MIPS_GIC
-		select HAVE_PCI
 endchoice
 
 choice