gpio-button-hotplug: add volume button handling
This is used by PISEN WMB001N.
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
(cherry picked from commit 11182349e1
)
v19.07.3_mercusys_ac12_duma
parent
f7b53dfb2a
commit
e2db2df644
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