user/Makefile: Fix typo and capitalization in comment section

$(deps_initramfs): klibcdirs

# We rebuild initramfs_data.cpio if:

# 1) Any included file is newer then initramfs_data.cpio

# 1) Any included file is newer than initramfs_data.cpio

# 2) There are changes in which files are included (added or deleted)

# 3) If gen_init_cpio are newer than initramfs_data.cpio

# 4) arguments to gen_initramfs.sh changes

# 4) Arguments to gen_initramfs.sh changes

$(obj)/$(datafile_y): $(obj)/gen_init_cpio $(deps_initramfs) klibcdirs

	$(Q)$(initramfs) -l $(ramfs-input) > $(obj)/$(datafile_d_y)

	$(call if_changed,initfs)