sunxi: Use CONFIG_MACH_SUN?I from Kconfig instead of CONFIG_SUN?I

Mostly automatic with:
    sed -i -e 's/CONFIG_\(SUN[45678]I\)/CONFIG_MACH_\1/g' $(git grep -l CONFIG_SUN[45678]I)
followed by removing the relevant #defines from include/configs/sun?i.h by
hand.

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
diff --git a/drivers/mmc/sunxi_mmc.c b/drivers/mmc/sunxi_mmc.c
index 16592e3..f2fa12e 100644
--- a/drivers/mmc/sunxi_mmc.c
+++ b/drivers/mmc/sunxi_mmc.c
@@ -75,7 +75,7 @@
 	/* config ahb clock */
 	setbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_MMC(sdc_no));
 
-#if defined(CONFIG_SUN6I) || defined(CONFIG_SUN8I)
+#if defined(CONFIG_MACH_SUN6I) || defined(CONFIG_MACH_SUN8I)
 	/* unassert reset */
 	setbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_RESET_OFFSET_MMC(sdc_no));
 #endif
@@ -385,7 +385,7 @@
 	cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34;
 	cfg->host_caps = MMC_MODE_4BIT;
 	cfg->host_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS;
-#if defined(CONFIG_SUN6I) || defined(CONFIG_SUN7I) || defined(CONFIG_SUN8I)
+#if defined(CONFIG_MACH_SUN6I) || defined(CONFIG_MACH_SUN7I) || defined(CONFIG_MACH_SUN8I)
 	cfg->host_caps |= MMC_MODE_HC;
 #endif
 	cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;