brcmfmac: fix CERT-P2P:5.1.10 failure

This patch fix CERT-P2P:5.1.10 failure at step 18 Group formation failed
due to chip is under dump survey. Decrease the dump survery duration to
pass this certification case.

Signed-off-by: Double Lo <double.lo@cypress.com>
Signed-off-by: Chi-hsien Lin <chi-hsien.lin@infineon.com>
Signed-off-by: Ian Lin <ian.lin@infineon.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220929012527.4152-4-ian.lin@infineon.com