Commit d16b32a401 (package/rpi-firmware: add option to install vcdbg) added
a sub option to install the vcdbg tool, but the commit unfortunately
contained two errors:
- The package sets _INSTALL_TARGET = NO, so the _TARGET_CMDS are never used
- The install command used -d (handle arguments as directories) instead of
-D (create needed directories)
Fix these issues.
Cc: yann.morin.1998@free.fr
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>