qca: Modified the way serial init to looks for console and gsbi_base

Updated serial init to look for console property in aliases instead of
directly looking for serial node. This is to support device tree to
contain multiple serial nodes with different unit address to support
boards using different gsbi peripherals.

Change-Id: Iae741d7e56464a2a43f9132dfe87af62945ce60e
Signed-off-by: Gokul Sriram Palanisamy <gpalan@codeaurora.org>
1 file changed