[Pdbg] [PATCH] build: update instructions for hard-float BMCs

[Nicholas Piggin]

Excerpts from Joel Stanley's message of January 15, 2021 2:28 pm:
> On Wed, 13 Jan 2021 at 05:28, Nicholas Piggin <npiggin at gmail.com> wrote:
>>
>> The previous patch was papering over the issue, badly. The cause of
>> the problem is that some OpenBMC builds have started to use hard float.
>> I didn't look hard enough and my ignorance of the ARM environment (and
>> the fact it "worked") made me think this was a more benign configuration
>> issue.
>>
>> So update the build instructions to select the hard-float toolchain
>> when necessary. Confirmed this works on Debian.
>>
>> Signed-off-by: Nicholas Piggin <npiggin at gmail.com>
> 
> Reviewed-by: Joel Stanley <joel at jms.id.au>
> 
> Thanks for getting to the bottom of this.

Thanks for the gentle prod to work it out properly :P

Thanks,
Nick