MIPS: Control huge tlb support via Kconfig symbol MIPS_HUGE_TLB_SUPPORT

We need Huge TLBs for HUGETLB_PAGE, or the soon to follow
TRANSPARENT_HUGEPAGE.  collect this information under a single Kconfig
symbol.

Signed-off-by: David Daney <david.daney@cavium.com>
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index dba9390..397194a 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1077,6 +1077,9 @@
 	depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
 	default y
 
+config MIPS_HUGE_TLB_SUPPORT
+	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
+
 config IRQ_CPU
 	bool