Navigation Bar Height/Width [1/2]

PS1: Initial upload
PS2: Rebase

Screw'd:
This kinda reverts this: https://github.com/MrApocalypse/frameworks_base/commit/daada0933b8ecb7a277eba9b740727540cac0b7a

Patchset2: Revert changes from navigation_bar.xml

Change-Id: I4782ad3ce892ccb5d9629e9ba76383768ff146c5
Signed-off-by: Lokesh Chamane <lokesh.c703@gmail.com>