configs: Migrate CONFIG_NR_DRAM_BANKS

We have the following cases:
- CONFIG_NR_DRAM_BANKS was defined, migrate normally
- CONFIG_NR_DRAM_BANKS_MAX was defined and then used for
  CONFIG_NR_DRAM_BANKS after a check, just migrate it over now.
- CONFIG_NR_DRAM_BANKS was very oddly defined on p2771-0000-* (to 1024 +
  2), set this to 8.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/orangepi_r1_defconfig b/configs/orangepi_r1_defconfig
index 8e6ee7b..bd43efe 100644
--- a/configs/orangepi_r1_defconfig
+++ b/configs/orangepi_r1_defconfig
@@ -8,6 +8,7 @@
 # CONFIG_VIDEO_DE2 is not set
 CONFIG_SPL_SPI_SUNXI=y
 CONFIG_DEFAULT_DEVICE_TREE="sun8i-h2-plus-orangepi-r1"
+CONFIG_NR_DRAM_BANKS=1
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 CONFIG_CONSOLE_MUX=y
 # CONFIG_CMD_FLASH is not set