esoc: Allow esoc driver binding with multiple external socs

Add support to match and bind a given esoc driver on the primary soc
with multiple external socs in case of a family of external socs
with similar characteristics.

Change-Id: Ib8eca880a18e88da71e4c610f855acf3e1ce5cef
Signed-off-by: Hanumant Singh <hanumant@codeaurora.org>