brcm63xx: refresh 3.9 patches

target/linux/brcm63xx/patches-3.9/500-board-D4PW.patch

target/linux/brcm63xx/patches-3.9/501-board-NB4.patch

...et/linux/brcm63xx/patches-3.9/502-board-96338W2_E7T.patch

target/linux/brcm63xx/patches-3.9/503-board-CPVA642.patch

...inux/brcm63xx/patches-3.9/504-board_dsl_274xb_rev_c.patch

target/linux/brcm63xx/patches-3.9/505-board_spw500v.patch

.../linux/brcm63xx/patches-3.9/506-board_gw6200_gw6000.patch

target/linux/brcm63xx/patches-3.9/507-board-MAGIC.patch

target/linux/brcm63xx/patches-3.9/508-board_hw553.patch

...et/linux/brcm63xx/patches-3.9/509-board_rta1320_16m.patch

target/linux/brcm63xx/patches-3.9/510-board_spw303v.patch

target/linux/brcm63xx/patches-3.9/511-board_V2500V.patch

target/linux/brcm63xx/patches-3.9/512-board_BTV2110.patch

...t/linux/brcm63xx/patches-3.9/514-board_ct536_ct5621.patch

...t/linux/brcm63xx/patches-3.9/515-board_DWV-S0_fixes.patch

target/linux/brcm63xx/patches-3.9/516-board_96348A-122.patch

...nux/brcm63xx/patches-3.9/517-RTA1205W_16_uart_fixes.patch

...et/linux/brcm63xx/patches-3.9/519_board_CPVA502plus.patch

...hes-3.9/520-bcm63xx-add-support-for-96368MVWG-board.patch

...es-3.9/521-bcm63xx-add-support-for-96368MVNgr-board.patch