board: arc: accommodate upstream OpenOCD for ARC

In newer OpenOCD version from Zephyr's SDK v0.12, there are some
changes in OpenOCD scripts: JTAG probe interface (AKA "adapter")
setup, see http://openocd.zylin.com/#/c/5784/

And so we need to change OpenOCD scripts accordingly to match
newer OpenOCD version from Zephyr's SDK v0.12.

Signed-off-by: Watson Zeng <zhiwei@synopsys.com>
diff --git a/boards/arc/em_starterkit/support/openocd.cfg b/boards/arc/em_starterkit/support/openocd.cfg
index 83430b2..217f7c5 100644
--- a/boards/arc/em_starterkit/support/openocd.cfg
+++ b/boards/arc/em_starterkit/support/openocd.cfg
@@ -1,6 +1,6 @@
 # Configure JTAG cable
 # EM Starter Kit has built-in FT2232 chip, which is similar to Digilent HS-1.
-interface ftdi
+adapter driver ftdi
 ftdi_vid_pid 0x0403 0x6010
 # channel 1 does not have any functionality
 ftdi_channel 0
@@ -15,7 +15,7 @@
 }
 
 # EM11D reportedly requires 5 MHz. Other cores and board can work faster.
-adapter_khz 5000
+adapter speed 5000
 
 # ARCs support only JTAG.
 transport select jtag
diff --git a/boards/arc/emsdp/support/openocd.cfg b/boards/arc/emsdp/support/openocd.cfg
index f3367e4..a895fe8 100644
--- a/boards/arc/emsdp/support/openocd.cfg
+++ b/boards/arc/emsdp/support/openocd.cfg
@@ -8,7 +8,7 @@
 
 # Configure JTAG cable
 # EM SDP has built-in FT2232 chip, which is similiar to Digilent HS-1.
-interface ftdi
+adapter driver ftdi
 
 # Only specify FTDI serial number if it is specified via
 # "set _ZEPHYR_BOARD_SERIAL 12345" before reading this script
@@ -22,7 +22,7 @@
 
 
 # EM11D requires 10 MHz.
-adapter_khz 10000
+adapter speed 10000
 
 # ARCs support only JTAG.
 transport select jtag
diff --git a/boards/arc/iotdk/support/openocd.cfg b/boards/arc/iotdk/support/openocd.cfg
index 08fdca0..e0a9130 100644
--- a/boards/arc/iotdk/support/openocd.cfg
+++ b/boards/arc/iotdk/support/openocd.cfg
@@ -8,7 +8,7 @@
 
 # Configure JTAG cable
 # IoT DK has built-in FT2232 chip, which is similar to Digilent HS-1.
-interface ftdi
+adapter driver ftdi
 
 # Only specify FTDI serial number if it is specified via
 # "set _ZEPHYR_BOARD_SERIAL 12345" before reading this script
@@ -22,7 +22,7 @@
 
 
 # EM9D requires 8 MHz.
-adapter_khz 8000
+adapter speed 8000
 
 # ARCs support only JTAG.
 transport select jtag