The default INSTALL_MOD_DIR was changed from 'extra' to 'updates' in commitb74d7bb7ca
("kbuild: Modify default INSTALL_MOD_DIR from extra to updates"). This commit updates the documentation to align with the latest kernel. Fixes:b74d7bb7ca
("kbuild: Modify default INSTALL_MOD_DIR from extra to updates") Signed-off-by: Mark-PK Tsai <mark-pk.tsai@mediatek.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>