python,python3: Update host pip[3] install functions

python,python3: Update host pip[3] install functions

* Add --cache-dir option to set the pip cache to a directory in
$(DL_DIR), instead of pip's default (build user's ~/.cache/pip),
fixes #9066

* Add --disable-pip-version-check option, since the version check only
prints a message saying a new version is available

* Combine host_python_pip_install and host_python_pip_install_host into
Build/Compile/HostPy[3]PipInstall

* Remove --root and --prefix options, since this function is only used
to install packages to host Python's default site-packages directory
(setting these may serve to confuse pip)

* Pass all of $(HOST_PYTHON[3]_PACKAGE_BUILD_DEPENDS) to the function,
since pip can handle multiple arguments/packages

Signed-off-by: Jeffery To <redacted>