Revert "net: bridge: use DEV_STATS_INC()"

This reverts commit 8bc97117 which is
commit 44bdb313 upstream.

It breaks the build as the change that it relies on was reverted due to
Android ABI breakage.  If it is needed in the future, it can be brought
back in an abi-safe way.

Bug: 161946584
Change-Id: I692ca5528a7d9d09122b6aeaf0751c45befa5dda
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>