usb: chipidea: drop useless arch-check

msm glue layer compiles on all arches just
fine. Let's drop the unnecessary ARCH check
so we have easier compile tests.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/chipidea/Makefile

@@ -5,10 +5,12 @@ ci_hdrc-$(CONFIG_USB_CHIPIDEA_UDC)	+= udc.o
 ci_hdrc-$(CONFIG_USB_CHIPIDEA_HOST)	+= host.o
 ci_hdrc-$(CONFIG_USB_CHIPIDEA_DEBUG)	+= debug.o
 
+# Glue/Bridge layers go here
+
+obj-$(CONFIG_USB_CHIPIDEA)	+= ci13xxx_msm.o
+
+# PCI doesn't provide stubs, need to check
 ifneq ($(CONFIG_PCI),)
 	obj-$(CONFIG_USB_CHIPIDEA)	+= ci13xxx_pci.o
 endif
 
-ifneq ($(CONFIG_ARCH_MSM),)
-	obj-$(CONFIG_USB_CHIPIDEA)	+= ci13xxx_msm.o
-endif