ARM: bcm: Enable five Cygnus boards

bcm911360_entphn
bcm911360_entphn-ns
bcm911360k
bcm958300k-ns
bcm958305k

- updates to support Cygnus and NSP board families better
- add functions so CONFIG_ARMV7_NONSEC can be enabled on Cygnus boards

Signed-off-by: Steve Rae <srae@broadcom.com>
diff --git a/board/broadcom/bcm958305k/MAINTAINERS b/board/broadcom/bcm958305k/MAINTAINERS
new file mode 100644
index 0000000..179fd4e
--- /dev/null
+++ b/board/broadcom/bcm958305k/MAINTAINERS
@@ -0,0 +1,6 @@
+BCM958305K BOARD
+M:	Steve Rae <srae@broadcom.com>
+S:	Maintained
+F:	board/broadcom/bcmcygnus/
+F:	include/configs/bcm_ep_board.h
+F:	configs/bcm958305k_defconfig