[PATCH] arm64: Kconfig: add CONFIG_CMDLINE_EXTEND

[Paul Cercueil]

Other archs have it, and it is supported in arch-independent code, so I
see no reason why it is not provided on Aarch64. Add it there.

Signed-off-by: Paul Cercueil <paul.cercueil at bootlin.com>
---
 arch/arm64/Kconfig | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 1075bc661833..f8542e532b50 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -2551,6 +2551,12 @@ config CMDLINE_FROM_BOOTLOADER
 	  the boot loader doesn't provide any, the default kernel command
 	  string provided in CMDLINE will be used.
 
+config CMDLINE_EXTEND
+	bool "Extend bootloader kernel arguments"
+	help
+	  The command-line arguments provided by the boot loader will be
+	  appended to the default kernel command string.
+
 config CMDLINE_FORCE
 	bool "Always use the default kernel command string"
 	help
-- 
2.47.3