regmap: debugfs: Suppress cache for partial register files
regmap: debugfs: Suppress cache for partial register files

The cache is based on the full register map so confuses things if used
for a partial map.

Reported-by: Bard Liao <44f95c252e5bdc8ed4413e18dbc09adedb90bea7@realtek.com>
Signed-off-by: Mark Brown <b51b9a92386687a9ac927cebfa0f978adeb8cea5@opensource.wolfsonmicro.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs