[U-Boot] [PATCH v2] jffs2, suen3: Fix compiler warning

[Tom]

Heiko Schocher wrote:
> $ ./MAKEALL suen3
> jffs2_1pass.c: In function 'get_fl_mem':
> jffs2_1pass.c:399: warning: unused variable 'id'
> jffs2_1pass.c: In function 'get_node_mem':
> jffs2_1pass.c:423: warning: unused variable 'id'
> 
> Signed-off-by: Heiko Schocher <hs at denx.de>

This change does silence these warning with no added regressions.
Tested-by: Tom <Tom.Rix at windriver.com>

Tom