sm8x50: Make rules for adding overlays to the prebuilts

Every time new board support is added, a few lines need to be copied and
modified to add the support. De-duplicate the logic and add static
pattern recipes to generate and apply the overlays.

Change-Id: Iaa9d2d62f0d2c20a11221a9f1264caea5e2290c7
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
1 file changed