mmc: Remove duplicate words in comments

Remove duplicate words in comments found using the following commands:

pcregrep --color=always -n \
	'([^a-zA-Z_])([a-zA-Z_]+)[[:space:]]+\2[^a-zA-Z_]' \
	drivers/mmc/host/*.[ch] drivers/mmc/core/*.[ch] \
	include/linux/mmc/*.h \
	include/uapi/linux/mmc/*.h | \
	grep -v 'long long'

pcregrep --color=always -n -M \
	'([^a-zA-Z_])([a-zA-Z_]+)[ \t]*\n[[:space:]*]+\2[^a-zA-Z_]' \
	drivers/mmc/host/*.[ch] \
	drivers/mmc/core/*.[ch] \
	include/linux/mmc/*.h \
	include/uapi/linux/mmc/*.h

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20221102120105.5747-1-adrian.hunter@intel.com


Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>