grub4efi - error numbers do not match grub4dos documentation

[steve6375]

ERR_INTERNAL_CHECK,
ERR_KERNEL_WITH_PROGRAM,
ERR_HALT,
ERR_PARTITION_LOOP,
ERR_NOT_ENOUGH_MEMORY,
ERR_NO_VBE_BIOS,
ERR_BAD_VBE_SIGNATURE,
ERR_LOW_VBE_VERSION,
ERR_NO_VBE_MODES,
ERR_SET_VBE_MODE,
ERR_SET_VGA_MODE,
ERR_LOAD_SPLASHIMAGE,
etc.
These error numbers have changed due to insertion of new error code ERR_WRITE_TO_NON_MEM_DRIVE.
error numbers are not the same as grub4dos and so makes diagnositics harder.
Please move ERR_WRITE_TO_NON_MEM_DRIVE to end of list in shared.h

[yaya2007]

见 #312

[steve6375]

Thanks