tcl: replace the deprecated commands with "adapter ..."

Avoid annoying "deprecated" messages while running the scripts
distributed with OpenOCD code.
Change automatically created with commands
	sed -i 's/adapter_khz/adapter speed/g' $(find tcl/ -type f)
	sed -i 's/adapter_nsrst_delay/adapter srst delay/g' $(find tcl/ -type f)
	sed -i 's/adapter_nsrst_assert_width/adapter srst pulse_width/g' $(find tcl/ -type f)

Minor indentation issue fixed manually in
	tcl/board/at91sam9g20-ek.cfg
	tcl/target/at91sam9260_ext_RAM_ext_flash.cfg

Change-Id: I425fd56c0c88cd6b06124621306eeb89166dfe71
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5284
Tested-by: jenkins
Reviewed-by: Oleksij Rempel <linux@rempel-privat.de>

tcl/target/stm32f3x.cfg

@@ -28,9 +28,9 @@ if { [info exists WORKAREASIZE] } {
 # bit more to be on the safe side. Perhaps superstition, but if are
 # running off a crystal, we can run closer to the limit. Note
 # that there can be a pretty wide band where things are more or less stable.
-adapter_khz 1000
+adapter speed 1000
 
-adapter_nsrst_delay 100
+adapter srst delay 100
 if {[using_jtag]} {
  jtag_ntrst_delay 100
 }
@@ -73,7 +73,7 @@ if {![using_hla]} {
 
 proc stm32f3x_default_reset_start {} {
 	# Reset clock is HSI (8 MHz)
-	adapter_khz 1000
+	adapter speed 1000
 }
 
 proc stm32f3x_default_examine_end {} {
@@ -93,7 +93,7 @@ proc stm32f3x_default_reset_init {} {
 	mmw 0x40021004 0x00000002 0 ;# RCC_CFGR |= SW[1]
 
 	# Boost JTAG frequency
-	adapter_khz 8000
+	adapter speed 8000
 }
 
 # Default hooks