ARC: rename kconfig option for unaligned emulation

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index bf1e410..cdb6b75 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -355,7 +355,7 @@
 	  kernel mode. This saves memory access for each such access
 
 
-config ARC_MISALIGN_ACCESS
+config ARC_EMUL_UNALIGNED
 	bool "Emulate unaligned memory access (userspace only)"
 	select SYSCTL_ARCH_UNALIGN_NO_WARN
 	select SYSCTL_ARCH_UNALIGN_ALLOW