[LPC11U68] Fixed PLL lock issue etc

Fixed PLL lock issue
Corrected system clock related code
Merge pull request #301 from toyowata/master

[LPC11U68] Fixed PLL lock issue etc
[NUCLEO_F401RE] Add PA_7 in AnalogIn pinout
uvision exporter - precompiled headers, flags addition

	- all current templates updated with misc flags option
	- K64F - precompiled headers flag for uvision
This change fixes the problem with K64F Ethernet support where after transmitting frames, the buffers were not released so system would eventually running out of memory.

Signed-off-by: unknown <sersca01@SERSCA01-002137.usa.Arm.com>
[NUCLEO_F030R8] Correct PA_7 pwm channel number
Merge pull request #303 from bco2stm/master

[NUCLEO_F030R8] Correct PA_7 pwm channel number