staging: hv: Convert camel case local variables in storvsc.c to lowercase

Convert camel case local variables in storvsc.c to lowercase
Signed-off-by: NAbhishek Kane <v-abkane@microsoft.com>
Signed-off-by: NHaiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: NHank Janssen <hjanssen@microsoft.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>