iwlwifi: Rename file name from iwl-sv-open.c to iwl-testmode.c

The file dealing with all the operations through testmode, rename it.
Signed-off-by: NWey-Yi Guy <wey-yi.w.guy@intel.com>

drivers/net/wireless/iwlwifi/Makefile

@@ -18,7 +18,7 @@ iwlwifi-objs		+= iwl-trans-pcie.o iwl-trans-pcie-rx.o iwl-trans-pcie-tx.o
 
 iwlwifi-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-debugfs.o
 iwlwifi-$(CONFIG_IWLWIFI_DEVICE_TRACING) += iwl-devtrace.o
-iwlwifi-$(CONFIG_IWLWIFI_DEVICE_SVTOOL) += iwl-sv-open.o
+iwlwifi-$(CONFIG_IWLWIFI_DEVICE_SVTOOL) += iwl-testmode.o
 
 CFLAGS_iwl-devtrace.o := -I$(src)