Revert "firmware_class: Add an additional path to fw_path list"

This reverts commit 901dc281
("firmware_class: Add an additional path to fw_path list")
Adding /firmware/images entry in fw_path is introducing selinux
denials as the access was happening under the clent process
context. Removing the entry from fw_path strcture.

Change-Id: Iaae0b0b152fa886476a6c93df345a2e5d071842f
Signed-off-by: Avijit Kanti Das <avijitnsec@codeaurora.org>