[U-Boot] PIP405: build warnings

[Wolfgang Denk]

Dear Denis,

the PIP405 board throws some build warnings:

Configuring for PIP405 board...
../common/isa.c: In function 'handle_isa_int':
../common/isa.c:385:21: warning: variable 'isr2' set but not used [-Wunused-but-set-variable]
../common/isa.c:385:16: warning: variable 'isr1' set but not used [-Wunused-but-set-variable]


Are you going to fix these, or can we assume this board is dead and
can be removed?

Thanks.

Wolfgang Denk

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