Remove upper device check warnings + implicitly follow upperifaces when

Remove upper device check warnings + implicitly follow upperifaces when
a logical interface comes up

Ticket: CM-2493
Reviewed By:
Testing Done: Tested ifup, ifdown in bond bridge setup

Also, implicitly pick up the upperifaces (even when user has not
specified --with-depends) for logical interfaces.
This is because when a logical interface goes down/deleted, kernel
impilicity deletes its upperifaces. so its better to implicitly bring
up upperifaces.

example

bridge name    bridge id        STP enabled    interfaces
br0        8000.7072cf8c2fca    yes        bond1
                            bond2
br2000        8000.7072cf8c2fca    yes        bond1.2000
                            bond2.2000
br2001        8000.7072cf8c2fca    yes        bond1.2001
                            bond2.2001

bridge name    bridge id        STP enabled    interfaces
br0        8000.000000000000    yes
br2000        8000.000000000000    yes
br2001        8000.000000000000    yes

bridge name    bridge id        STP enabled    interfaces
br0        8000.7072cf8c2fca    yes        bond1
                            bond2
br2000        8000.7072cf8c2fca    yes        bond1.2000
                            bond2.2000
br2001        8000.7072cf8c2fca    yes        bond1.2001
                            bond2.2001