AArch64: bump ram_min to hold kernel image

Reserved 64M for payload to hold kernel image. So, bump ram_min to 0x44400000

Signed-off-by: Jianyong Wu <[email protected]>

aarch64-unknown-none.ld

@@ -4,11 +4,11 @@ ENTRY(ram64_start)
     DRAM:   [0x4000_0000-0xfc00_0000]
     FDT:    [0x4000_0000-0x401f_ffff)
     ACPI:   [0x4020_0000-0x403f_ffff)
-    payload:[0x4040_0000-0x405f_ffff)
-    RHF:    [0x40600000-]
+    payload:[0x4040_0000-0x443f_ffff)
+    RHF:    [0x44400000-]
    Assuming 2MB is enough to load payload.
    The stack start is at the end of the RHF region. */
-ram_min = 0x40600000;
+ram_min = 0x44400000;
 
 /* This value must be identical with arch::aarch64::layout::map::dram::KERNEL_START. */
 PAYLOAD_START = 0x40400000;