rockchip: Fix the configuration for chromebook_jerry

Various updates did not make it through to this board. Also the instructions
for building a SPI image are no-longer correct. Fix these so that Jerry can
boot to a prompt again.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/chromebook_jerry_defconfig b/configs/chromebook_jerry_defconfig
index da47707..a515d8d 100644
--- a/configs/chromebook_jerry_defconfig
+++ b/configs/chromebook_jerry_defconfig
@@ -27,7 +27,9 @@
 CONFIG_DM_MMC=y
 CONFIG_ROCKCHIP_DWMMC=y
 CONFIG_PINCTRL=y
+# CONFIG_PINCTRL_FULL is not set
 CONFIG_SPL_PINCTRL=y
+# CONFIG_SPL_PINCTRL_FULL is not set
 CONFIG_ROCKCHIP_PINCTRL=y
 CONFIG_DM_PMIC=y
 CONFIG_PMIC_ACT8846=y
@@ -41,5 +43,7 @@
 CONFIG_DEBUG_UART_SHIFT=2
 CONFIG_SYS_NS16550=y
 CONFIG_USE_PRIVATE_LIBGCC=y
+CONFIG_USE_TINY_PRINTF=y
 CONFIG_CMD_DHRYSTONE=y
 CONFIG_ERRNO_STR=y
+CONFIG_ROCKCHIP_SPI=y