defconfig: Enable remote debugger support for sdm670

Adding remote debugger device configuration. The Remote Debugger driver
allows a debugger running on a host PC to communicate with a remote
stub running on peripheral subsystems.

Change-Id: I032208d579205965286726401decbe3c4edcc1c9
Signed-off-by: Tharun Kumar Merugu <mtharu@codeaurora.org>
diff --git a/arch/arm64/configs/sdm670_defconfig b/arch/arm64/configs/sdm670_defconfig
index 822324d..ab7268f 100644
--- a/arch/arm64/configs/sdm670_defconfig
+++ b/arch/arm64/configs/sdm670_defconfig
@@ -314,6 +314,7 @@
 CONFIG_HW_RANDOM_MSM_LEGACY=y
 # CONFIG_DEVPORT is not set
 CONFIG_MSM_ADSPRPC=y
+CONFIG_MSM_RDBG=m
 CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_QCOM_GENI=y
 CONFIG_SPI=y