ARM: 7860/1: debug: msm: Add DEBUG_LL support for ARCH_MSM8974

Add debug uart support for MSM8974. This patch adds a Kconfig
entry and the base address for the debug uart.

Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 8e9665d..a8f305b 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -357,6 +357,15 @@
 		  Say Y here if you want the debug print routines to direct
 		  their output to the serial port on MSM 8960 devices.
 
+	config DEBUG_MSM8974_UART
+		bool "Kernel low-level debugging messages via MSM 8974 UART"
+		depends on ARCH_MSM8974
+		select MSM_HAS_DEBUG_UART_HS
+		select DEBUG_MSM_UART
+		help
+		  Say Y here if you want the debug print routines to direct
+		  their output to the serial port on MSM 8974 devices.
+
 	config DEBUG_MVEBU_UART
 		bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
 		depends on ARCH_MVEBU