omap3: overo: Fix fdtfile test
Commit 12cc543767
'omap3: overo: Select
fdtfile for expansion board' wrongly missed the operator in the fdtfile
test. Update the test to only overwrite an empty fdtfile environment
variable.
Signed-off-by: Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net>
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@ -151,7 +151,7 @@
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"run mmcboot;" \
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"fi;" \
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"if run loadzimage; then " \
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"if test $fdtfile; then " \
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"if test -z \"${fdtfile}\"; then " \
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"setenv fdtfile omap3-${boardname}-${expansionname}.dtb;" \
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"fi;" \
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"if run loadfdt; then " \
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