Kernel: Replace i386 with i686

I don't really want to be working with i386 since it doesn't support
compare exchange instruction

kernel/arch/i686/linker.ld

@@ -0,0 +1,45 @@
+ENTRY (_start)
+
+KERNEL_OFFSET = 0xC0000000;
+
+SECTIONS
+{
+	. = 0xF000;
+	.ap_init ALIGN(4K) : AT(ADDR(.ap_init))
+	{
+		g_ap_init_addr = .;
+		*(.ap_init)
+	}
+
+	. = 0x00100000 + KERNEL_OFFSET;
+
+	g_kernel_start = .;
+	.text ALIGN(4K) : AT(ADDR(.text) - KERNEL_OFFSET)
+	{
+		g_kernel_execute_start = .;
+		*(.multiboot)
+		*(.bananboot)
+		*(.text.*)
+	}
+	.userspace ALIGN(4K) : AT(ADDR(.userspace) - KERNEL_OFFSET)
+	{
+		g_userspace_start = .;
+		*(.userspace)
+		g_userspace_end = .;
+		g_kernel_execute_end = .;
+	}
+	.rodata ALIGN(4K) : AT(ADDR(.rodata) - KERNEL_OFFSET)
+	{
+		*(.rodata.*)
+	}
+	.data ALIGN(4K) : AT(ADDR(.data) - KERNEL_OFFSET)
+	{
+		*(.data)
+	}
+	.bss ALIGN(4K) : AT(ADDR(.bss) - KERNEL_OFFSET)
+	{
+		*(COMMON)
+		*(.bss)
+	}
+	g_kernel_end = .;
+}