MIPS: Enable MIPS 3.5 features on Malta

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 7314464..daef670 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -321,6 +321,7 @@
 	select SWAP_IO_SPACE
 	select SYS_HAS_CPU_MIPS32_R1
 	select SYS_HAS_CPU_MIPS32_R2
+	select SYS_HAS_CPU_MIPS32_R3_5
 	select SYS_HAS_CPU_MIPS64_R1
 	select SYS_HAS_CPU_MIPS64_R2
 	select SYS_HAS_CPU_NEVADA