configs: openrd: removed support for eMMC hardware partitioning

builds are broken because the size of the binary exceeds the limit.
Make some space by removing support for hardware partitioning as those
boards don't have any eMMC.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
diff --git a/configs/openrd_client_defconfig b/configs/openrd_client_defconfig
index 7a95b5b..e65c437 100644
--- a/configs/openrd_client_defconfig
+++ b/configs/openrd_client_defconfig
@@ -25,6 +25,7 @@
 CONFIG_ISO_PARTITION=y
 CONFIG_ENV_IS_IN_NAND=y
 CONFIG_MVSATA_IDE=y
+# CONFIG_MMC_HW_PARTITIONING is not set
 CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_EHCI_HCD=y