sunxi: Convert CONFIG_MACPWR to Kconfig

Convert the CONFIG_MACPWR to Kconfig and update all the sunxi defconfigs
that used it in SYS_EXTRA_OPTIONS.

Signed-off-by: Mylène Josserand <mylene.josserand@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
diff --git a/configs/jesurun_q5_defconfig b/configs/jesurun_q5_defconfig
index 608e523..822d56b 100644
--- a/configs/jesurun_q5_defconfig
+++ b/configs/jesurun_q5_defconfig
@@ -2,11 +2,11 @@
 CONFIG_ARCH_SUNXI=y
 CONFIG_MACH_SUN4I=y
 CONFIG_DRAM_CLK=312
+CONFIG_MACPWR="PH19"
 CONFIG_USB0_VBUS_PIN="PB9"
 CONFIG_VIDEO_COMPOSITE=y
 CONFIG_DEFAULT_DEVICE_TREE="sun4i-a10-jesurun-q5"
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
-CONFIG_SYS_EXTRA_OPTIONS="MACPWR=SUNXI_GPH(19)"
 CONFIG_SPL=y
 CONFIG_SPL_I2C_SUPPORT=y
 # CONFIG_CMD_IMLS is not set