hercules: remove config_wifi_p2p_support overlay

Change-Id: Ic88d75cf7abfeac913931a5a1ce2874dbbd5098e
hercules: move to 4.3-style fstab in msm8660-common

Change-Id: Id8c9f93f978996612572cb44a593772dd40ddc45
hercules: add minimum baseband version check for T989 and T989D

Change-Id: Ia7f70516babdd5928aae3533f847312582b250b5
hercules: Remove BT tether overlay

Change-Id: I7063554747dc000def642d3f7c1614352eb6ede9
hercules: consolidate overlays into celox-common

  * move common overlays from skyrocket/hercules into celox

Change-Id: I848cd330f03a91da411e7170f9b96817a13b39a7