Delete about 700 used only once symbols.

I used the following script to clean up the file,
iomux-mx51.h.

cp iomux-mx51.h iomux-mx51.h.cpy

sed -n iomux-mx51.h.cpy \
-e 's/#define[ \x09]\+\(_MX5[0-9a-zA-Z_]*\)[ \x09]\+\(.\+\)/s@\1@\2@g/p' >t.tmp

sed iomux-mx51.h.cpy \
-e '/define[ \x09]\+_MX5/d' \
-f t.tmp \
-e 's/,[ \x09]*\([^,]\+\)/, \1/g' \
-e 's/, 0)[ \x09]*|[ \x09]*MUX_PAD_CTRL(/, /' \
-e 's/(IOMUX_PAD(\(.*\)))/IOMUX_PAD(\1)/' \
-e 's/0x\([0-9a-fA-F]\{2\}\)[ \x09]*,/0x0\1,/' \
-e 's/0x0\([0-9a-fA-F]\{3\}\)[ \x09]*,/0x\1,/' \
-e '/#include <mach\/iomux-v3.h/ a#define __NA_\x090x000\n' \
-e 's/0x[0]\{1,3\},/__NA_,/' \
-e 's/#define[ \x09]\+\(MX5[0-9a-zA-Z_]*\)[ \x09]\+\(IOMUX_PAD.\+\)/#define \1\x09\2/' \
-e 's/\(#define MX5[^\x09]\{5,12\}\)\x09\(IOMUX_PAD.\+\)/\1\x09\x09\x09\x09\2/' \
-e 's/\(#define MX5[^\x09]\{13,20\}\)\x09\(IOMUX_PAD.\+\)/\1\x09\x09\x09\2/' \
-e 's/\(#define MX5[^\x09]\{21,28\}\)\x09\(IOMUX_PAD.\+\)/\1\x09\x09\2/' \
-e 's/\(#define MX5[^\x09]\{29,36\}\)\x09\(IOMUX_PAD.\+\)/\1\x09\2/' \
-e 's/\(#define MX5[^\x09]\{45,\}\)\x09\(IOMUX_PAD.\+\)/\1\x09\\\n\x09\x09\x09\x09\x09\x09\2/' \
-e 's/, IOMUX_CONFIG_SION,/, 0 | IOMUX_CONFIG_SION,/' \
-e 's/\((0x[0-9a-fA-F]*, 0x[0-9a-fA-F]*, \)0x0\([0-9a-fA-F]\{2\},\)/\10x\2/' >iomux-mx51.h
Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>