msm: 7630: Select ARCH_HAS_HOLES_MEMORYMODEL

7630 uses sparsemem. ARCH_HAS_HOLES_MEMORYMODEL was never selected.
Without this option, pfn_valid may not actually work. Select this
option to ensure pfn_valid actually works and any other options are
selected correctly for this memory map.

Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
diff --git a/arch/arm/mach-msm/Kconfig b/arch/arm/mach-msm/Kconfig
index 1a05ef2..809408c 100644
--- a/arch/arm/mach-msm/Kconfig
+++ b/arch/arm/mach-msm/Kconfig
@@ -35,6 +35,7 @@
 	select CPU_V7
 	select MSM_REMOTE_SPINLOCK_DEKKERS
 	select ARCH_SPARSEMEM_ENABLE
+	select ARCH_HAS_HOLES_MEMORYMODEL
 	select MEMORY_HOTPLUG
 	select MEMORY_HOTREMOVE
 	select MIGRATION