linux-yocto/4.4: gpio-pca953x: add PCAL9535 interrupt support
Reverting two previous gpio commits to allow the application of proper
upstream ready patches to add this support:
08943f2bbd50 gpio-pca953x: add "drive" property
a517d5b72e76 gpio: pca953x: provide GPIO base based on _UID
c91063f44368 gpio-pca953x: add PCAL9535 interrupt support
58f3c9f0ac6d Revert "gpio-pca953x: add "drive" property"
7abbd5fec15d Revert "gpio: pca953x: provide GPIO base based on _UID"
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
