rp2/fatfs_port: Fix the modification date of files.

robert-hh · dpgeorge · commit 92d911803812 · 2022-10-12T00:31:38.000+11:00
It was off by 2000 % 128 == 80 years. Addresses issue micropython#9535.
diff --git a/ports/rp2/fatfs_port.c b/ports/rp2/fatfs_port.c
@@ -30,5 +30,5 @@
 MP_WEAK DWORD get_fattime(void) {
     datetime_t t;
     rtc_get_datetime(&t);
-    return ((2000 + t.year - 1980) << 25) | ((t.month) << 21) | ((t.day) << 16) | ((t.hour) << 11) | ((t.min) << 5) | (t.sec / 2);
+    return ((t.year - 1980) << 25) | ((t.month) << 21) | ((t.day) << 16) | ((t.hour) << 11) | ((t.min) << 5) | (t.sec / 2);
 }

Original file line number	Diff line number	Diff line change
`@@ -30,5 +30,5 @@`
`30`	`30`	`MP_WEAK DWORD get_fattime(void) {`
`31`	`31`	`datetime_t t;`
`32`	`32`	`rtc_get_datetime(&t);`
`33`		`- return ((2000 + t.year - 1980) << 25) \| ((t.month) << 21) \| ((t.day) << 16) \| ((t.hour) << 11) \| ((t.min) << 5) \| (t.sec / 2);`
	`33`	`+ return ((t.year - 1980) << 25) \| ((t.month) << 21) \| ((t.day) << 16) \| ((t.hour) << 11) \| ((t.min) << 5) \| (t.sec / 2);`
`34`	`34`	`}`