tcl: remove trailing whitespace

The script checkpatch available in new Linux kernel offers an
experimental feature for automatically fix the code in place.
While still experimental, the feature works quite well for simple
fixes, like spacing.

This patch has been created automatically with the script under
review for inclusion in OpenOCD, using the command:
	find tcl/ -type f -exec ./tools/scripts/checkpatch.pl \
	-q --types TRAILING_WHITESPACE --fix-inplace -f {} \;

The patch only changes amount and position of whitespace, thus
the following commands show empty diff
	git diff -w
	git log -w -p
	git log -w --stat

Change-Id: Ie7e3a236f4db9c70019e3b3c7e851edbd3a9dd84
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5616
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Tested-by: jenkins

tcl/board/at91sam9g20-ek.cfg

@@ -139,13 +139,13 @@ proc at91sam9g20_reset_init { } {
 	# (MT29F2G08AACWP) can be established by setting four registers in order:  SMC_SETUP3,
 	# SMC_PULSE3, SMC_CYCLE3, and SMC_MODE3.  Computing the exact values of these registers
 	# is a little tedious to do here.  If you have questions about how to do this, Atmel has
-	# a decent application note #6255B that covers this process. 
+	# a decent application note #6255B that covers this process.
 
 	mww 0xffffec30 0x00020002	;# SMC_SETUP3 : 2 clock cycle setup for NRD and NWE
 	mww 0xffffec34 0x04040404	;# SMC_PULSE3 : 4 clock cycle pulse for all signals
 	mww 0xffffec38 0x00070006	;# SMC_CYCLE3 : 7 clock cycle NRD and 6 NWE cycle
-	mww 0xffffec3C 0x00020003	;# SMC_MODE3 : NRD and NWE control, no NWAIT, 8-bit DBW, 
-   
+	mww 0xffffec3C 0x00020003	;# SMC_MODE3 : NRD and NWE control, no NWAIT, 8-bit DBW,
+
 	mww 0xffffe800 0x00000001	;# ECC_CR : reset the ECC parity registers
 	mww 0xffffe804 0x00000002	;# ECC_MR : page size is 2112 words (word is 8 bits)