remoteproc: Fixup coredump debugfs disable request

Fix the discrepancy observed between accepted input and read back value
while disabling remoteproc coredump through the coredump debugfs entry.

Fixes: 3afdc59e43 ("remoteproc: Add coredump debugfs entry")
Cc: stable@vger.kernel.org
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200916145100.15872-1-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

drivers/remoteproc/remoteproc_debugfs.c

@@ -94,7 +94,7 @@ static ssize_t rproc_coredump_write(struct file *filp,
 		goto out;
 	}
 
-	if (!strncmp(buf, "disable", count)) {
+	if (!strncmp(buf, "disabled", count)) {
 		rproc->dump_conf = RPROC_COREDUMP_DISABLED;
 	} else if (!strncmp(buf, "inline", count)) {
 		rproc->dump_conf = RPROC_COREDUMP_INLINE;