arch/arm/samv7: fix typos in quadrature encoder and timer drivers

The typo s/.timid/.tcid prevents to compile NuttX with
quadrature encoder configured for timer1 (CONFIG_SAMV7_TC1_QE)
and s/SAM_TC789_BASE/SAM_TC678_BASE prevented use of the
of the timer 2.

Signed-off-by: Pavel Pisa <ppisa@pikron.com>

arch/arm/src/samv7/sam_qencoder.c

@@ -118,7 +118,7 @@ static struct sam_lowerhalf_s g_tc0lower =
 static struct sam_lowerhalf_s g_tc1lower =
 {
   .ops      = &g_qecallbacks,
-  .timid    = 1,
+  .tcid     = 1,
   .inuse    = false,
 };
 #endif

arch/arm/src/samv7/sam_tc.c

@@ -514,7 +514,7 @@ static struct sam_tc_s g_tc345 =
 static struct sam_tc_s g_tc678 =
 {
   .lock    = NXMUTEX_INITIALIZER,
-  .base    = SAM_TC789_BASE,
+  .base    = SAM_TC678_BASE,
   .tc      = 2,
 };
 #endif