boards.cfg: update email address for ti814x_evm maintainer

Update my email address as ti814x_evm maintainer to save
people some frustrating bounces and non-response.

Signed-off-by: Matt Porter <matt.porter@linaro.org>
diff --git a/boards.cfg b/boards.cfg
index ce5b686..de3d75d 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -264,7 +264,7 @@
 Active  arm         armv7          am33xx      ti              am335x              am335x_evm_uart5                     am335x_evm:SERIAL6,CONS_INDEX=1,NAND                                                                                              Tom Rini <trini@ti.com>
 Active  arm         armv7          am33xx      ti              am335x              am335x_evm_usbspl                    am335x_evm:SERIAL1,CONS_INDEX=1,NAND,SPL_USBETH_SUPPORT                                                                           Tom Rini <trini@ti.com>
 Active  arm         armv7          am33xx      ti              am43xx              am43xx_evm                           am43xx_evm:SERIAL1,CONS_INDEX=1                                                                                                   -
-Active  arm         armv7          am33xx      ti              ti814x              ti814x_evm                           -                                                                                                                                 Matt Porter <mporter@ti.com>
+Active  arm         armv7          am33xx      ti              ti814x              ti814x_evm                           -                                                                                                                                 Matt Porter <matt.porter@linaro.org>
 Active  arm         armv7          am33xx      ti              ti816x              ti816x_evm                           -                                                                                                                                 -
 Active  arm         armv7          at91        atmel           sama5d3xek          sama5d3xek_mmc                       sama5d3xek:SAMA5D3,SYS_USE_MMC                                                                                                    Bo Shen <voice.shen@atmel.com>
 Active  arm         armv7          at91        atmel           sama5d3xek          sama5d3xek_nandflash                 sama5d3xek:SAMA5D3,SYS_USE_NANDFLASH                                                                                              Bo Shen <voice.shen@atmel.com>