build: convert HAS_OMAP use to Kconfig

Use the Kconfig generated CONFIG_HAS_OMAP defines in the code base.

Signed-off-by: Doug Goldstein <cardoe@cardoe.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>

config/arm32.mk

@@ -9,7 +9,6 @@ CONFIG_XEN_INSTALL_SUFFIX :=
 # Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
 CFLAGS += -marm
 
-HAS_OMAP := y
 HAS_SCIF := y
 HAS_MEM_ACCESS := y
 

xen/drivers/char/Kconfig

@@ -31,3 +31,12 @@ config HAS_EXYNOS4210
 	help
 	  This selects the Samsung Exynos 4210 UART. If you have a Samsung
 	  Exynos based board, say Y.
+
+# OMAP UART support
+config HAS_OMAP
+	bool
+	default y
+	depends on ARM_32
+	help
+	  This selects the Texas Instruments OMAP UART. If you have a Texas
+	  Instruments based CPU, say Y.

xen/drivers/char/Makefile

@@ -3,7 +3,7 @@ obj-$(CONFIG_HAS_NS16550) += ns16550.o
 obj-$(CONFIG_HAS_CADENCE_UART) += cadence-uart.o
 obj-$(CONFIG_HAS_PL011) += pl011.o
 obj-$(CONFIG_HAS_EXYNOS4210) += exynos4210-uart.o
-obj-$(HAS_OMAP) += omap-uart.o
+obj-$(CONFIG_HAS_OMAP) += omap-uart.o
 obj-$(HAS_SCIF) += scif-uart.o
 obj-$(HAS_EHCI) += ehci-dbgp.o
 obj-$(CONFIG_ARM) += dt-uart.o