linux-imx

ARM: add Broadcom Brahma-B53 main ID definition

This commit allows a Broadcom Brahma-B53 core to be detected when executing
an arm architecture kernel in aarch32 state.

Signed-off-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>