only gzip is supported, do not add an extra symbol

target/linux/config/Config.in.kernel

@@ -128,18 +128,9 @@ config ADK_KERNEL_CPU_LITTLE_ENDIAN
 	default y if ADK_little
 	boolean
 
-config ADK_KERNEL_COMP_GZIP_RASPBERRY_PI
-        boolean
-        select ADK_KERNEL_RD_GZIP
-        select ADK_KERNEL_KERNEL_GZIP
-        select ADK_KERNEL_INITRAMFS_COMPRESSION_GZIP
-	depends on ADK_TARGET_SYSTEM_RASPBERRY_PI
-	default y
-
 choice
 prompt "Kernel Compression"
-depends on !ADK_TARGET_SYSTEM_RASPBERRY_PI && \
-	   !ADK_TARGET_SYSTEM_MIKROTIK_RB532 && \
+depends on !ADK_TARGET_SYSTEM_MIKROTIK_RB532 && \
 	   !ADK_TARGET_SYSTEM_QEMU_M68K
 
 config ADK_KERNEL_COMP_XZ
@@ -148,6 +139,7 @@ config ADK_KERNEL_COMP_XZ
 	select ADK_KERNEL_RD_XZ
 	select ADK_KERNEL_KERNEL_XZ
 	select ADK_KERNEL_INITRAMFS_COMPRESSION_XZ
+	depends on !ADK_TARGET_SYSTEM_RASPBERRY_PI
 
 config ADK_KERNEL_COMP_LZ4
 	prompt "use LZ4 compression"
@@ -156,6 +148,7 @@ config ADK_KERNEL_COMP_LZ4
 	select ADK_KERNEL_KERNEL_LZ4
 	select ADK_KERNEL_INITRAMFS_COMPRESSION_LZ4
 	depends on ADK_LINUX_X86 || ADK_LINUX_ARM
+	depends on !ADK_TARGET_SYSTEM_RASPBERRY_PI
 
 config ADK_KERNEL_COMP_LZMA
 	prompt "use LZMA compression"
@@ -163,6 +156,7 @@ config ADK_KERNEL_COMP_LZMA
 	select ADK_KERNEL_RD_LZMA
 	select ADK_KERNEL_KERNEL_LZMA
 	select ADK_KERNEL_INITRAMFS_COMPRESSION_LZMA
+	depends on !ADK_TARGET_SYSTEM_RASPBERRY_PI
 
 config ADK_KERNEL_COMP_LZO
 	prompt "use LZO compression"
@@ -170,6 +164,7 @@ config ADK_KERNEL_COMP_LZO
 	select ADK_KERNEL_RD_LZO
 	select ADK_KERNEL_KERNEL_LZO
 	select ADK_KERNEL_INITRAMFS_COMPRESSION_LZO
+	depends on !ADK_TARGET_SYSTEM_RASPBERRY_PI
 
 config ADK_KERNEL_COMP_GZIP
 	prompt "use GZIP compression"
@@ -184,6 +179,7 @@ config ADK_KERNEL_COMP_BZIP2
 	select ADK_KERNEL_RD_BZIP2
 	select ADK_KERNEL_KERNEL_BZIP2
 	select ADK_KERNEL_INITRAMFS_COMPRESSION_BZIP2
+	depends on !ADK_TARGET_SYSTEM_RASPBERRY_PI
 
 endchoice