treewide, timers: Rename from_timer() to timer_container_of()

This timer API was renamed in commit 41cb08555c41 ("treewide, timers:
Rename from_timer() to timer_container_of()"), see [1] for more info.
Make the corresponding updates here.

Link: https://git.kernel.org/torvalds/c/41cb08555c41 [1]
Change-Id: I6a39ec30325ad24812624310126b330e3fb20d16
Signed-off-by: Carlos Llamas <cmllamas@google.com>

kernel/drivers/net/ieee802154/dw3000_nfcc_coex_core.c

diff --git a/kernel/drivers/net/ieee802154/dw3000_nfcc_coex_core.c b/kernel/drivers/net/ieee802154/dw3000_nfcc_coex_core.c
index 4820d09..c3b3460 100644
--- a/kernel/drivers/net/ieee802154/dw3000_nfcc_coex_core.c
+++ b/kernel/drivers/net/ieee802154/dw3000_nfcc_coex_core.c
@@ -259,7 +259,7 @@
 static void dw3000_nfcc_coex_watchdog_timeout(struct timer_list *timer)
 {
 	struct dw3000_nfcc_coex *nfcc_coex =
-		from_timer(nfcc_coex, timer, watchdog_timer);
+		timer_container_of(nfcc_coex, timer, watchdog_timer);
 	struct dw3000 *dw = nfcc_coex_to_dw(nfcc_coex);
 	struct dw3000_stm_command cmd = { dw3000_nfcc_coex_do_watchdog_timeout,
 					  NULL, NULL };