ARM: dts: ti: fix PCI bus dtc warnings

[ Upstream commit 7d79f6098d82f8c09914d7799bc96891ad9c3baf ]

dtc recently added PCI bus checks. Fix these warnings.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: "Benoît Cousson" <bcousson@baylibre.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: linux-omap@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>