ARM: omap: Remove stray ARCH_HAS_OPP references

OPP is now a normal kernel library selected by its users rather than a
feature that architectures need to enable so ARCH_HAS_OPP serves no
function any more - remove the selects.
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/Kconfig

@@ -25,7 +25,6 @@ config ARCH_OMAP4
 	bool "TI OMAP4"
 	depends on ARCH_MULTI_V7
 	select ARCH_OMAP2PLUS
-	select ARCH_HAS_OPP
 	select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP
 	select ARM_CPU_SUSPEND if PM
 	select ARM_ERRATA_720789
@@ -44,7 +43,6 @@ config SOC_OMAP5
 	bool "TI OMAP5"
 	depends on ARCH_MULTI_V7
 	select ARCH_OMAP2PLUS
-	select ARCH_HAS_OPP
 	select ARM_CPU_SUSPEND if PM
 	select ARM_GIC
 	select HAVE_ARM_SCU if SMP
@@ -56,14 +54,12 @@ config SOC_AM33XX
 	bool "TI AM33XX"
 	depends on ARCH_MULTI_V7
 	select ARCH_OMAP2PLUS
-	select ARCH_HAS_OPP
 	select ARM_CPU_SUSPEND if PM
 
 config SOC_AM43XX
 	bool "TI AM43x"
 	depends on ARCH_MULTI_V7
 	select ARCH_OMAP2PLUS
-	select ARCH_HAS_OPP
 	select ARM_GIC
 	select MACH_OMAP_GENERIC
 	select MIGHT_HAVE_CACHE_L2X0
@@ -72,7 +68,6 @@ config SOC_DRA7XX
 	bool "TI DRA7XX"
 	depends on ARCH_MULTI_V7
 	select ARCH_OMAP2PLUS
-	select ARCH_HAS_OPP
 	select ARM_CPU_SUSPEND if PM
 	select ARM_GIC
 	select HAVE_ARM_ARCH_TIMER